Adjustable scaffold for ceiling board,申请号US19570649425-传众专利搜索

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发明名称	Adjustable scaffold for ceiling board
摘要
申请公布号	US2846085(A)	申请公布日期	1958.08.05
申请号	US19570649425	申请日期	1957.03.29
申请人	JOHNSON GUSTAV J	发明人	JOHNSON GUSTAV J.
分类号	E04F21/18	主分类号	E04F21/18
代理机构		代理人
主权项
地址

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