Board making machine,申请号US19310531155-传众专利搜索

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发明名称	Board making machine
摘要
申请公布号	US1933934(A)	申请公布日期	1933.11.07
申请号	US19310531155	申请日期	1931.04.18
申请人	RUBY GEORGE H A	发明人	RUBY GEORGE H. A.
分类号	D21F9/00	主分类号	D21F9/00
代理机构		代理人
主权项
地址

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