Hole spacing and centering device,申请号US19500196298-传众专利搜索

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发明名称	Hole spacing and centering device
摘要
申请公布号	US2612793(A)	申请公布日期	1952.10.07
申请号	US19500196298	申请日期	1950.11.17
申请人	ROBERT F. KRAINZ	发明人	TIMPNER HENRY
分类号	B23B35/00;B23B45/14;B23B47/28;B23B49/04;B23Q35/02	主分类号	B23B35/00
代理机构		代理人
主权项
地址

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