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3722069
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H01 - BASIC ELECTRIC ELEMENTS
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3679284
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Patent number 3,679,284
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H01 - BASIC ELECTRIC ELEMENTS
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3601651
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Patent number 3,601,651
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H01 - BASIC ELECTRIC ELEMENTS
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3594059
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Patent number 3,594,059
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H01 - BASIC ELECTRIC ELEMENTS
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3476972
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Patent number 3,476,972
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H01 - BASIC ELECTRIC ELEMENTS
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3404933
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H01 - BASIC ELECTRIC ELEMENTS
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3390033
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H01 - BASIC ELECTRIC ELEMENTS
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3377496
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H01 - BASIC ELECTRIC ELEMENTS
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3114068
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H01 - BASIC ELECTRIC ELEMENTS
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3063777
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H01 - BASIC ELECTRIC ELEMENTS
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2999781
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Patent number 2,999,781
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H01 - BASIC ELECTRIC ELEMENTS
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2884298
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H01 - BASIC ELECTRIC ELEMENTS
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2884312
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Patent number 2,884,312
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H01 - BASIC ELECTRIC ELEMENTS
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2852352
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C03 - GLASS MINERAL OR SLAG WOOL
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2843925
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H01 - BASIC ELECTRIC ELEMENTS
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2733973
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H01 - BASIC ELECTRIC ELEMENTS
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2544104
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H01 - BASIC ELECTRIC ELEMENTS
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2478982
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H01 - BASIC ELECTRIC ELEMENTS
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2441353
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H01 - BASIC ELECTRIC ELEMENTS
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2429836
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H01 - BASIC ELECTRIC ELEMENTS
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2390683
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H01 - BASIC ELECTRIC ELEMENTS
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2372649
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H01 - BASIC ELECTRIC ELEMENTS
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2371327
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H01 - BASIC ELECTRIC ELEMENTS
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2324390
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H01 - BASIC ELECTRIC ELEMENTS
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2304714
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H01 - BASIC ELECTRIC ELEMENTS
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2047959
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H01 - BASIC ELECTRIC ELEMENTS
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2009444
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H01 - BASIC ELECTRIC ELEMENTS
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1993724
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H01 - BASIC ELECTRIC ELEMENTS
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1990482
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H01 - BASIC ELECTRIC ELEMENTS