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Laser beam glass cutting
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Patent number 4,682,003
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Issue date Jul 21, 1987
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Sasaki Glass Co., Ltd.
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Takao Minakawa
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3885943
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Patent number 3,885,943
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Issue date May 27, 1975
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C03 - GLASS MINERAL OR SLAG WOOL
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3803876
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Patent number 3,803,876
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Issue date Apr 16, 1974
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C03 - GLASS MINERAL OR SLAG WOOL
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2963821
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Patent number 2,963,821
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Issue date Dec 13, 1960
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C03 - GLASS MINERAL OR SLAG WOOL
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2700850
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Patent number 2,700,850
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Issue date Feb 1, 1955
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C03 - GLASS MINERAL OR SLAG WOOL
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2590173
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Patent number 2,590,173
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Issue date Mar 25, 1952
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C03 - GLASS MINERAL OR SLAG WOOL
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2166871
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Patent number 2,166,871
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Issue date Jul 18, 1939
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C03 - GLASS MINERAL OR SLAG WOOL