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Patent:US3221644


Patent:US 3221644
Title:Printing device with zero suppressing means
Date:07.12.1965
Place:Dietlikon, Zurich
Country:USA
Person:Gelling, Helmut (P)
Company:Precisa (P) AG
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Keywords:
Link to the patent office:
(without guarantee)
 US3221644 (espacenet),  US3221644 (uspto)


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