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Rotary forehearth
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Patent number 4,337,073
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Issue date Jun 29, 1982
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PPG Industries, Inc.
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Warren W. Drummond
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C03 - GLASS MINERAL OR SLAG WOOL
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Glass conditioning
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Patent number 4,247,320
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Issue date Jan 27, 1981
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Corning Glass Works
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Bihari Bansal
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C03 - GLASS MINERAL OR SLAG WOOL
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2344464
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Patent number 2,344,464
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Issue date Mar 14, 1944
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C03 - GLASS MINERAL OR SLAG WOOL
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2044616
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Patent number 2,044,616
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Issue date Jun 16, 1936
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C03 - GLASS MINERAL OR SLAG WOOL
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2038797
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Patent number 2,038,797
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Issue date Apr 28, 1936
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C03 - GLASS MINERAL OR SLAG WOOL
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2023746
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Patent number 2,023,746
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Issue date Dec 10, 1935
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C03 - GLASS MINERAL OR SLAG WOOL
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2023745
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Patent number 2,023,745
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Issue date Dec 10, 1935
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C03 - GLASS MINERAL OR SLAG WOOL
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1977968
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Patent number 1,977,968
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Issue date Oct 23, 1934
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C03 - GLASS MINERAL OR SLAG WOOL
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1967378
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Patent number 1,967,378
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Issue date Jul 24, 1934
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C03 - GLASS MINERAL OR SLAG WOOL
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1937479
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Patent number 1,937,479
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Issue date Nov 28, 1933
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C03 - GLASS MINERAL OR SLAG WOOL
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1920747
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Patent number 1,920,747
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Issue date Aug 1, 1933
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C03 - GLASS MINERAL OR SLAG WOOL
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1907361
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Patent number 1,907,361
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Issue date May 2, 1933
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C03 - GLASS MINERAL OR SLAG WOOL
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1878597
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Patent number 1,878,597
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Issue date Sep 20, 1932
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C03 - GLASS MINERAL OR SLAG WOOL
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1864495
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Patent number 1,864,495
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C03 - GLASS MINERAL OR SLAG WOOL
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1815258
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Patent number 1,815,258
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C03 - GLASS MINERAL OR SLAG WOOL
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1790820
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Patent number 1,790,820
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C03 - GLASS MINERAL OR SLAG WOOL
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1710790
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Patent number 1,710,790
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C03 - GLASS MINERAL OR SLAG WOOL
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1690777
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Patent number 1,690,777
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C03 - GLASS MINERAL OR SLAG WOOL
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1690998
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Patent number 1,690,998
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Issue date Nov 6, 1928
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C03 - GLASS MINERAL OR SLAG WOOL
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1669475
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Patent number 1,669,475
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C03 - GLASS MINERAL OR SLAG WOOL
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1651036
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C03 - GLASS MINERAL OR SLAG WOOL
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1618290
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C03 - GLASS MINERAL OR SLAG WOOL
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1581963
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C03 - GLASS MINERAL OR SLAG WOOL
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1274616
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C03 - GLASS MINERAL OR SLAG WOOL
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1035865
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C03 - GLASS MINERAL OR SLAG WOOL
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1027933
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C03 - GLASS MINERAL OR SLAG WOOL
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1002375
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Issue date Sep 5, 1911
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C03 - GLASS MINERAL OR SLAG WOOL