Protractor, compass and ruler,申请号US19540446121-传众专利搜索

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法人/股东/高管

发明名称	Protractor, compass and ruler
摘要
申请公布号	US2857674(A)	申请公布日期	1958.10.28
申请号	US19540446121	申请日期	1954.07.27
申请人	FELDHAKE HERBERT J	发明人	FELDHAKE HERBERT J.
分类号	B43L9/00	主分类号	B43L9/00
代理机构		代理人
主权项
地址

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