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Patent:US3525270


Patent:US 3525270
Title:Pinwheel with retractable pins
Date:25.08.1970
Place:Franconville, France
Country:USA
Person:Queffeleant, Jacques Michel
Company:Burroughs (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US3525270 (espacenet),  US3525270 (uspto)


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