Clench tube for safeguarding scaffold workers,申请号US19380231927-传众专利搜索

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发明名称	Clench tube for safeguarding scaffold workers
摘要
申请公布号	US2172094(A)	申请公布日期	1939.09.05
申请号	US19380231927	申请日期	1938.09.27
申请人	VOIGT FREDERICK A	发明人	VOIGT FREDERICK A.
分类号	A62B35/04;E04G21/32	主分类号	A62B35/04
代理机构		代理人
主权项
地址

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