Planetary gear unit,申请号US19450570952-传众专利搜索

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发明名称	Planetary gear unit
摘要
申请公布号	US2444448(A)	申请公布日期	1948.07.06
申请号	US19450570952	申请日期	1945.01.01
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	KANNENBERG WALTER F.
分类号	G05D3/14;H03J1/20	主分类号	G05D3/14
代理机构		代理人
主权项
地址

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