Handle for rock drills,申请号US19270241535-传众专利搜索

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发明名称	Handle for rock drills
摘要
申请公布号	US1809141(A)	申请公布日期	1931.06.09
申请号	US19270241535	申请日期	1927.12.21
申请人	INGERSOLL-RAND COMPANY	发明人	MOCK JOHN F.
分类号	B25D17/00	主分类号	B25D17/00
代理机构		代理人
主权项
地址

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