Scaffold jack and ladder,申请号US19480028106-传众专利搜索

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发明名称	Scaffold jack and ladder
摘要
申请公布号	US2586149(A)	申请公布日期	1952.02.19
申请号	US19480028106	申请日期	1948.05.20
申请人	THE STAR WELDING & MANUFACTURING COMPANY, INC.	发明人	COBLE ERNEST L.
分类号	E04G1/32;E04G5/10	主分类号	E04G1/32
代理机构		代理人
主权项
地址

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