Guide lineholder for masons,申请号US19540452130-传众专利搜索

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发明名称	Guide lineholder for masons
摘要
申请公布号	US2715777(A)	申请公布日期	1955.08.23
申请号	US19540452130	申请日期	1954.08.25
申请人	STRUCTURAL CLAY PRODUCTS RESEARCH FOUNDATION	发明人	TAYLOR ROBERT B.;JOHNSON PAUL V.
分类号	E04G21/18	主分类号	E04G21/18
代理机构		代理人
主权项
地址

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