Forming conical frustums by progressive chamfering,申请号US19430473820-传众专利搜索

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发明名称	Forming conical frustums by progressive chamfering
摘要
申请公布号	US2356850(A)	申请公布日期	1944.08.29
申请号	US19430473820	申请日期	1943.01.28
申请人	WILLIAM HORBERG	发明人	HORBERG WILLIAM
分类号	B24B5/24	主分类号	B24B5/24
代理机构		代理人
主权项
地址

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