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3703417
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H01 - BASIC ELECTRIC ELEMENTS
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3497419
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3480847
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H01 - BASIC ELECTRIC ELEMENTS
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3177107
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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3129277
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H01 - BASIC ELECTRIC ELEMENTS
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3082133
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Patent number 3,082,133
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H01 - BASIC ELECTRIC ELEMENTS
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3069302
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Patent number 3,069,302
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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3053727
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Patent number 3,053,727
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2809946
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Patent number 2,809,946
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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2804908
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Patent number 2,804,908
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H01 - BASIC ELECTRIC ELEMENTS
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2792871
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2772157
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Patent number 2,772,157
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H01 - BASIC ELECTRIC ELEMENTS
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2759813
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Patent number 2,759,813
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2747994
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Patent number 2,747,994
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2732295
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Patent number 2,732,295
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2718475
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Patent number 2,718,475
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H01 - BASIC ELECTRIC ELEMENTS
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2717219
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Patent number 2,717,219
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H01 - BASIC ELECTRIC ELEMENTS
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2704381
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Patent number 2,704,381
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2702068
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Patent number 2,702,068
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Issue date Feb 15, 1955
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2633433
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Patent number 2,633,433
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2624714
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Patent number 2,624,714
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2523022
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Issue date Sep 19, 1950
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H01 - BASIC ELECTRIC ELEMENTS
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2457518
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2454218
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Patent number 2,454,218
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H01 - BASIC ELECTRIC ELEMENTS