Focusing hood for photographic cameras,申请号US19550496658-传众专利搜索

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发明名称	Focusing hood for photographic cameras
摘要
申请公布号	US2912912(A)	申请公布日期	1959.11.17
申请号	US19550496658	申请日期	1955.03.25
申请人	FRANKE & HEIDECKE, FABRIK PHOTOGRAPHISCHER PRAZISIONS-APPARATE	发明人	HEIDECKE REINHOLD;BRETTHAUER HERMANN;MADGE JOACHIM
分类号	G03B13/26	主分类号	G03B13/26
代理机构		代理人
主权项
地址

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