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3770936
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Patent number 3,770,936
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Issue date Nov 6, 1973
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B44 - DECORATIVE ARTS
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3701880
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Patent number 3,701,880
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Issue date Oct 31, 1972
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B44 - DECORATIVE ARTS
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3657085
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Patent number 3,657,085
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Issue date Apr 18, 1972
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B44 - DECORATIVE ARTS
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3634219
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Patent number 3,634,219
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Issue date Jan 11, 1972
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G02 - OPTICS
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3542536
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Patent number 3,542,536
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Issue date Nov 24, 1970
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G02 - OPTICS
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3515587
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Patent number 3,515,587
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Issue date Jun 2, 1970
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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3454386
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Patent number 3,454,386
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Issue date Jul 8, 1969
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C03 - GLASS MINERAL OR SLAG WOOL
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3354064
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Patent number 3,354,064
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Issue date Nov 21, 1967
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C03 - GLASS MINERAL OR SLAG WOOL
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3283155
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Patent number 3,283,155
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Issue date Nov 1, 1966
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C03 - GLASS MINERAL OR SLAG WOOL
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3258351
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Patent number 3,258,351
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Issue date Jun 28, 1966
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C03 - GLASS MINERAL OR SLAG WOOL