Pneumatic percussion tool with slide valve control gear,申请号US19390289619-传众专利搜索

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发明名称	Pneumatic percussion tool with slide valve control gear
摘要
申请公布号	US2259379(A)	申请公布日期	1941.10.14
申请号	US19390289619	申请日期	1939.08.11
申请人	STAHLWERK MARK WENGERN A. G.	发明人	HERZBRUCH AUGUST
分类号	B25D9/20;E21B1/30	主分类号	B25D9/20
代理机构		代理人
主权项
地址

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