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Heater band
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Patent number 4,311,900
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Issue date Jan 19, 1982
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Acra Electric Corporation
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Matt N. Hummel
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H01 - BASIC ELECTRIC ELEMENTS
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Wire-wound resistor
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Patent number 4,185,263
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Issue date Jan 22, 1980
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P. R. Mallory & Co. Inc.
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Robert L. Frey
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H01 - BASIC ELECTRIC ELEMENTS
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2225030
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Patent number 2,225,030
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Issue date Dec 17, 1940
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H01 - BASIC ELECTRIC ELEMENTS
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2153152
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Patent number 2,153,152
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Issue date Apr 4, 1939
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H01 - BASIC ELECTRIC ELEMENTS
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2078778
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Patent number 2,078,778
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Issue date Apr 27, 1937
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H01 - BASIC ELECTRIC ELEMENTS
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2039974
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Patent number 2,039,974
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Issue date May 5, 1936
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H01 - BASIC ELECTRIC ELEMENTS
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2019998
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Patent number 2,019,998
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Issue date Nov 5, 1935
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H01 - BASIC ELECTRIC ELEMENTS
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2020000
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Patent number 2,020,000
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Issue date Nov 5, 1935
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H01 - BASIC ELECTRIC ELEMENTS
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2019997
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Patent number 2,019,997
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Issue date Nov 5, 1935
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H01 - BASIC ELECTRIC ELEMENTS
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2020001
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Patent number 2,020,001
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Issue date Nov 5, 1935
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H01 - BASIC ELECTRIC ELEMENTS
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2019999
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Patent number 2,019,999
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Issue date Nov 5, 1935
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H01 - BASIC ELECTRIC ELEMENTS
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1930932
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Patent number 1,930,932
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Issue date Oct 17, 1933
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H01 - BASIC ELECTRIC ELEMENTS
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1823473
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Patent number 1,823,473
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Issue date Sep 15, 1931
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H01 - BASIC ELECTRIC ELEMENTS
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1738529
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Patent number 1,738,529
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Issue date Dec 10, 1929
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H01 - BASIC ELECTRIC ELEMENTS
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1677240
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Patent number 1,677,240
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Issue date Jul 17, 1928
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H01 - BASIC ELECTRIC ELEMENTS
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1476105
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Patent number 1,476,105
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Issue date Dec 4, 1923
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H01 - BASIC ELECTRIC ELEMENTS
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1401186
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Patent number 1,401,186
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Issue date Dec 27, 1921
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H01 - BASIC ELECTRIC ELEMENTS
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1153703
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Patent number 1,153,703
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Issue date Sep 14, 1915
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H01 - BASIC ELECTRIC ELEMENTS
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1130052
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Patent number 1,130,052
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Issue date Mar 2, 1915
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H01 - BASIC ELECTRIC ELEMENTS
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1119838
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Patent number 1,119,838
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Issue date Dec 8, 1914
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H01 - BASIC ELECTRIC ELEMENTS
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971525
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Patent number 971,525
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Issue date Oct 4, 1910
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H01 - BASIC ELECTRIC ELEMENTS
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957226
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Patent number 957,226
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Issue date May 10, 1910
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H01 - BASIC ELECTRIC ELEMENTS
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851667
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Patent number 851,667
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Issue date Apr 30, 1907
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H01 - BASIC ELECTRIC ELEMENTS
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668442
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Patent number 668,442
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Issue date Feb 19, 1901
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H01 - BASIC ELECTRIC ELEMENTS
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467611
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Patent number 467,611
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Issue date Jan 26, 1892
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H01 - BASIC ELECTRIC ELEMENTS