Rifling machine,申请号US19400330862-传众专利搜索

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发明名称	Rifling machine
摘要
申请公布号	US2261797(A)	申请公布日期	1941.11.04
申请号	US19400330862	申请日期	1940.04.22
申请人	NILES-BEMENT-POND COMPANY	发明人	DURKEE HENRY E.
分类号	B23D5/02	主分类号	B23D5/02
代理机构		代理人
主权项
地址

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