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Patent:US2864554


Patent:US 2864554
Title:Printing calculating apparatus switch means
Date:16.12.1958
Place:Hayward
Country:USA
Person:Donald L. Rolph Robert A. McKee
Company:Friden (P)
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Keywords:
Link to the patent office:
(without guarantee)
 US2864554 (espacenet),  US2864554 (uspto)


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