Quarry drop hammer,申请号US19460654071-传众专利搜索

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发明名称	Quarry drop hammer
摘要
申请公布号	US2524589(A)	申请公布日期	1950.10.03
申请号	US19460654071	申请日期	1946.03.13
申请人	ALLIS-CHALMERS MANUFACTURING COMPANY	发明人	BECKER GEORGE D.
分类号	B02C1/14;B21J7/44	主分类号	B02C1/14
代理机构		代理人
主权项
地址

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