Wallboard,申请号US19370165395-传众专利搜索

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法人/股东/高管

发明名称	Wallboard
摘要
申请公布号	US2186511(A)	申请公布日期	1940.01.09
申请号	US19370165395	申请日期	1937.09.23
申请人	WELCH FLOYD D	发明人	WELCH FLOYD D.
分类号	E04B1/61;E04B9/22	主分类号	E04B1/61
代理机构		代理人
主权项
地址

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