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Apparatus for refining glass
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Patent number 3,992,183
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Issue date Nov 16, 1976
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Owens-Illinois, Inc.
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Robert R. Rough
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C03 - GLASS MINERAL OR SLAG WOOL
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3893836
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Patent number 3,893,836
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Issue date Jul 8, 1975
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C03 - GLASS MINERAL OR SLAG WOOL
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3874864
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Patent number 3,874,864
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Issue date Apr 1, 1975
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C03 - GLASS MINERAL OR SLAG WOOL
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3847581
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Patent number 3,847,581
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Issue date Nov 12, 1974
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G05 - CONTROLLING REGULATING
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3819350
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Patent number 3,819,350
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Issue date Jun 25, 1974
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C03 - GLASS MINERAL OR SLAG WOOL
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3754886
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Patent number 3,754,886
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Issue date Aug 28, 1973
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C03 - GLASS MINERAL OR SLAG WOOL
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3748113
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Patent number 3,748,113
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Issue date Jul 24, 1973
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C03 - GLASS MINERAL OR SLAG WOOL
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2006947
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Patent number 2,006,947
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Issue date Jul 2, 1935
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C03 - GLASS MINERAL OR SLAG WOOL
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1951881
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Patent number 1,951,881
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Issue date Mar 20, 1934
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C03 - GLASS MINERAL OR SLAG WOOL
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1562115
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Patent number 1,562,115
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Issue date Nov 17, 1925
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C03 - GLASS MINERAL OR SLAG WOOL
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1559203
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Patent number 1,559,203
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Issue date Oct 27, 1925
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C03 - GLASS MINERAL OR SLAG WOOL
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1549597
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Patent number 1,549,597
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Issue date Aug 11, 1925
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C03 - GLASS MINERAL OR SLAG WOOL
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1541584
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Patent number 1,541,584
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Issue date Jun 9, 1925
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C03 - GLASS MINERAL OR SLAG WOOL