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Laser apparatus
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Patent number 5,760,880
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Issue date Jun 2, 1998
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E. I. Du Pont de Nemours and Company
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Roxy Ni Fan
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Laser apparatus and process of use
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Patent number 5,654,125
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Issue date Aug 5, 1997
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E. I. Du Pont de Nemours and Company
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Roxy Ni Fan
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Solid imaging system
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Patent number 5,143,817
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Issue date Sep 1, 1992
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E. I. Du Pont de Nemours and Company
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John A. Lawton
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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