Free piston pneumatic hammer,申请号US19350017001-传众专利搜索

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发明名称	Free piston pneumatic hammer
摘要
申请公布号	US2070552(A)	申请公布日期	1937.02.09
申请号	US19350017001	申请日期	1935.04.18
申请人	ROBERT A. RUNDLE	发明人	OHLSSON SAMUEL
分类号	B25D11/12	主分类号	B25D11/12
代理机构		代理人
主权项
地址

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