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Leonard W. Schaper
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Berkeley Heights, NJ, US
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last 30 patents
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Patent Grant
Optical fiber switch
Patent number
5,000,532
Issue date
Mar 19, 1991
AT&T Bell Laboratories
Richard T. Kraetsch
G02 - OPTICS
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Patent Grant
Optical fiber switch
Patent number
4,896,937
Issue date
Jan 30, 1990
American Telephone and Telegraph Company, AT&T Bell Laboratories
Richard T. Kraetsch
G02 - OPTICS