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Ernst Leberzammer
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Glen Mills, PA, US
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last 30 patents
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Patent Grant
Lasers engravable multilayer flexographic printing element
Patent number
5,804,353
Issue date
Sep 8, 1998
E. I. DuPont de Nemours and Company
Stephen Cushner
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Patent Grant
Laser engravable single-layer flexographic printing element
Patent number
5,798,202
Issue date
Aug 25, 1998
E. I. DuPont de Nemours and Company
Stephen Cushner
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS