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Liquid fuel lamp
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Patent number 6,250,912
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Issue date Jun 26, 2001
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Widdowson Enterprise Inc.
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Richard E. Widdowson
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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3900281
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Patent number 3,900,281
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Issue date Aug 19, 1975
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F24 - HEATING RANGES VENTILATING
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3868944
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Patent number 3,868,944
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Issue date Mar 4, 1975
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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3829278
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Patent number 3,829,278
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Issue date Aug 13, 1974
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F24 - HEATING RANGES VENTILATING
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3817686
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Patent number 3,817,686
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Issue date Jun 18, 1974
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F24 - HEATING RANGES VENTILATING
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3807886
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Patent number 3,807,886
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Issue date Apr 30, 1974
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3801212
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Patent number 3,801,212
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Issue date Apr 2, 1974
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3724445
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Patent number 3,724,445
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Issue date Apr 3, 1973
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2870828
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Patent number 2,870,828
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Issue date Jan 27, 1959
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F24 - HEATING RANGES VENTILATING
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2870829
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Patent number 2,870,829
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Issue date Jan 27, 1959
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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2700100
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Patent number 2,700,100
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Issue date Jan 18, 1955
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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2627304
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Patent number 2,627,304
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Issue date Feb 3, 1953
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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2461731
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Patent number 2,461,731
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Issue date Feb 15, 1949
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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2455950
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Patent number 2,455,950
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Issue date Dec 14, 1948
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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2321169
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Patent number 2,321,169
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Issue date Jun 8, 1943
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F24 - HEATING RANGES VENTILATING
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2227251
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Patent number 2,227,251
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Issue date Dec 31, 1940
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F24 - HEATING RANGES VENTILATING
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2195264
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Patent number 2,195,264
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Issue date Mar 26, 1940
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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2189871
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Patent number 2,189,871
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Issue date Feb 13, 1940
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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2147225
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Patent number 2,147,225
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Issue date Feb 14, 1939
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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2111774
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Patent number 2,111,774
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Issue date Mar 22, 1938
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F24 - HEATING RANGES VENTILATING
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2095403
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Patent number 2,095,403
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Issue date Oct 12, 1937
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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2024776
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Patent number 2,024,776
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Issue date Dec 17, 1935
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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1980449
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Patent number 1,980,449
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Issue date Nov 13, 1934
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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1944492
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Patent number 1,944,492
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Issue date Jan 23, 1934
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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1837030
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Patent number 1,837,030
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Issue date Dec 15, 1931
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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1815342
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Patent number 1,815,342
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Issue date Jul 21, 1931
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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1799035
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Patent number 1,799,035
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Issue date Mar 31, 1931
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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1793873
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Patent number 1,793,873
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Issue date Feb 24, 1931
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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1780896
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Patent number 1,780,896
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Issue date Nov 11, 1930
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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1744111
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Patent number 1,744,111
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Issue date Jan 21, 1930
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES