Power actuated percussion tool,申请号US19440541641-传众专利搜索

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发明名称	Power actuated percussion tool
摘要
申请公布号	US2480879(A)	申请公布日期	1949.09.06
申请号	US19440541641	申请日期	1944.06.22
申请人	JOHN V. RICE, JR. CORPORATION	发明人	JR. JOHN V. RICE,
分类号	E21B1/34;E21B6/08	主分类号	E21B1/34
代理机构		代理人
主权项
地址

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