Adjustable extension scaffold trestle with guard rail,申请号US19400316204-传众专利搜索

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发明名称	Adjustable extension scaffold trestle with guard rail
摘要
申请公布号	US2237543(A)	申请公布日期	1941.04.08
申请号	US19400316204	申请日期	1940.01.29
申请人	BERCHEM HUBERT C;SCHNEIDER JOHN P	发明人	BERCHEM HUBERT C.;SCHNEIDER JOHN P.
分类号	E04G1/32	主分类号	E04G1/32
代理机构		代理人
主权项
地址

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