Speed change device,申请号US19310528501-传众专利搜索

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发明名称	Speed change device
摘要
申请公布号	US1938594(A)	申请公布日期	1933.12.12
申请号	US19310528501	申请日期	1931.04.08
申请人	WESKENSON CORPORATION	发明人	JOHNSON WILLIAM HORACE
分类号	F16H29/20	主分类号	F16H29/20
代理机构		代理人
主权项
地址

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