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3912371
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Patent number 3,912,371
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Issue date Oct 14, 1975
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G02 - OPTICS
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3878426
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H01 - BASIC ELECTRIC ELEMENTS
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3796902
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H01 - BASIC ELECTRIC ELEMENTS
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3580709
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C03 - GLASS MINERAL OR SLAG WOOL
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3325777
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G02 - OPTICS
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3322653
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H01 - BASIC ELECTRIC ELEMENTS
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3322654
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Patent number 3,322,654
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3303085
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Patent number 3,303,085
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3270414
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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3221199
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H01 - BASIC ELECTRIC ELEMENTS
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3192135
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Patent number 3,192,135
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H01 - BASIC ELECTRIC ELEMENTS
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3140528
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C03 - GLASS MINERAL OR SLAG WOOL
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3116191
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H01 - BASIC ELECTRIC ELEMENTS
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3109954
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H01 - BASIC ELECTRIC ELEMENTS
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3067348
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H01 - BASIC ELECTRIC ELEMENTS
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3064391
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Patent number 3,064,391
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H01 - BASIC ELECTRIC ELEMENTS
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3020433
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H01 - BASIC ELECTRIC ELEMENTS
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2874101
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H01 - BASIC ELECTRIC ELEMENTS
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2803780
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H01 - BASIC ELECTRIC ELEMENTS
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2793178
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H01 - BASIC ELECTRIC ELEMENTS
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2682501
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H01 - BASIC ELECTRIC ELEMENTS
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2681886
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H01 - BASIC ELECTRIC ELEMENTS
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2662274
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H01 - BASIC ELECTRIC ELEMENTS
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2662852
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H01 - BASIC ELECTRIC ELEMENTS
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2650191
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H01 - BASIC ELECTRIC ELEMENTS
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2641553
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H01 - BASIC ELECTRIC ELEMENTS
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2598317
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H01 - BASIC ELECTRIC ELEMENTS
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2596617
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H01 - BASIC ELECTRIC ELEMENTS
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2539442
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H01 - BASIC ELECTRIC ELEMENTS
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2500633
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G02 - OPTICS