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Contouring glass seal edge
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Patent number 4,052,184
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Issue date Oct 4, 1977
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Corning Glass Works
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Joseph W. Anderson
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C03 - GLASS MINERAL OR SLAG WOOL
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3155748
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Patent number 3,155,748
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Issue date Nov 3, 1964
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C03 - GLASS MINERAL OR SLAG WOOL
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2152754
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Patent number 2,152,754
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Issue date Apr 4, 1939
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C03 - GLASS MINERAL OR SLAG WOOL
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2106193
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Patent number 2,106,193
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Issue date Jan 25, 1938
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C03 - GLASS MINERAL OR SLAG WOOL
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2001460
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Patent number 2,001,460
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Issue date May 14, 1935
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C03 - GLASS MINERAL OR SLAG WOOL
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1857080
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Patent number 1,857,080
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Issue date May 3, 1932
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C03 - GLASS MINERAL OR SLAG WOOL
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1536828
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Patent number 1,536,828
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Issue date May 5, 1925
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G02 - OPTICS
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1512013
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Patent number 1,512,013
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Issue date Oct 21, 1924
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C03 - GLASS MINERAL OR SLAG WOOL