Sketching aid head attachment,申请号US19550538170-传众专利搜索

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法人/股东/高管

发明名称	Sketching aid head attachment
摘要
申请公布号	US2796666(A)	申请公布日期	1957.06.25
申请号	US19550538170	申请日期	1955.10.03
申请人	SIMON LIEBOWITZ	发明人	LIEBOWITZ SIMON
分类号	B43L13/18	主分类号	B43L13/18
代理机构		代理人
主权项
地址

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