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Nicola Digiovinazzo
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Hohenroth, DE
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last 30 patents
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Patent Grant
Keyboard switch device for facilitating removal and replacement of...
Patent number
4,902,862
Issue date
Feb 20, 1990
Preh Elektrofeinmechanische Werke Jakob Preh Nachf. GmbH & Co.
Jurgen Oelsch
H01 - BASIC ELECTRIC ELEMENTS