Safety switch for shot firing cables,申请号US19330654529-传众专利搜索

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发明名称	Safety switch for shot firing cables
摘要
申请公布号	US1954907(A)	申请公布日期	1934.04.17
申请号	US19330654529	申请日期	1933.01.31
申请人	ALBERT A. CRAWFORD;CARL CRAWFORD	发明人	WILLIAMS LOYD
分类号	F42D1/045	主分类号	F42D1/045
代理机构		代理人
主权项
地址

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