Retarding device for gears,申请号US19330652709-传众专利搜索

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发明名称	Retarding device for gears
摘要
申请公布号	US1972971(A)	申请公布日期	1934.09.11
申请号	US19330652709	申请日期	1933.01.20
申请人	VOIGTLANDER & SOHN AKTIENGESELLSCHAFT	发明人	BARENYI ARPAD
分类号	G03B9/58	主分类号	G03B9/58
代理机构		代理人
主权项
地址

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