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Multifilament light bulb
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Issue date Apr 25, 2000
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Mark Joseph Lesch
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H01 - BASIC ELECTRIC ELEMENTS
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3673534
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H01 - BASIC ELECTRIC ELEMENTS
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3324289
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Patent number 3,324,289
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F21 - LIGHTING
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2402375
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Patent number 2,402,375
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H01 - BASIC ELECTRIC ELEMENTS
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2243186
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Patent number 2,243,186
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Issue date May 27, 1941
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H01 - BASIC ELECTRIC ELEMENTS
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2241598
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Patent number 2,241,598
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Issue date May 13, 1941
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H01 - BASIC ELECTRIC ELEMENTS
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2217134
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Patent number 2,217,134
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Issue date Oct 8, 1940
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H01 - BASIC ELECTRIC ELEMENTS
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2209187
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Patent number 2,209,187
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Issue date Jul 23, 1940
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H01 - BASIC ELECTRIC ELEMENTS
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2197330
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Patent number 2,197,330
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Issue date Apr 16, 1940
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H01 - BASIC ELECTRIC ELEMENTS
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2197331
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Patent number 2,197,331
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H01 - BASIC ELECTRIC ELEMENTS
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2195921
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Patent number 2,195,921
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H01 - BASIC ELECTRIC ELEMENTS
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2177237
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Patent number 2,177,237
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Issue date Oct 24, 1939
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H01 - BASIC ELECTRIC ELEMENTS
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2161443
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Patent number 2,161,443
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Issue date Jun 6, 1939
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H01 - BASIC ELECTRIC ELEMENTS
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2150232
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Patent number 2,150,232
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Issue date Mar 14, 1939
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H01 - BASIC ELECTRIC ELEMENTS
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2143150
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Patent number 2,143,150
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Issue date Jan 10, 1939
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H01 - BASIC ELECTRIC ELEMENTS
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2142430
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Patent number 2,142,430
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H01 - BASIC ELECTRIC ELEMENTS
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2139762
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Patent number 2,139,762
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H01 - BASIC ELECTRIC ELEMENTS
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2093528
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Patent number 2,093,528
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Issue date Sep 21, 1937
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H01 - BASIC ELECTRIC ELEMENTS
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2092996
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Patent number 2,092,996
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H01 - BASIC ELECTRIC ELEMENTS
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2086192
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Patent number 2,086,192
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Issue date Jul 6, 1937
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H01 - BASIC ELECTRIC ELEMENTS
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2082326
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Patent number 2,082,326
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H01 - BASIC ELECTRIC ELEMENTS
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2055098
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Patent number 2,055,098
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H01 - BASIC ELECTRIC ELEMENTS
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2053051
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Patent number 2,053,051
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H01 - BASIC ELECTRIC ELEMENTS
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1977124
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Patent number 1,977,124
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H01 - BASIC ELECTRIC ELEMENTS
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1946393
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Patent number 1,946,393
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Issue date Feb 6, 1934
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H01 - BASIC ELECTRIC ELEMENTS
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1875692
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Patent number 1,875,692
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Issue date Sep 6, 1932
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H01 - BASIC ELECTRIC ELEMENTS