In das selbsterzeugte Bohrloch einschiebbarer Pressluftbohrhammer,申请号DE193901S6800D-传众专利搜索

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发明名称	In das selbsterzeugte Bohrloch einschiebbarer Pressluftbohrhammer
摘要
申请公布号	DE697466(C)	申请公布日期	1940.10.15
申请号	DE193901S6800D	申请日期	1939.04.20
申请人	WALTER SANDMANN	发明人	SANDMANN WALTER
分类号	E21B4/14	主分类号	E21B4/14
代理机构		代理人
主权项
地址

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