Feeder tube cylinder,申请号US19630281640-传众专利搜索

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发明名称	Feeder tube cylinder
摘要
申请公布号	US3207044(A)	申请公布日期	1965.09.21
申请号	US19630281640	申请日期	1963.05.20
申请人	HALL THOMAS R	发明人	HALL THOMAS R.
分类号	E21B19/087;F15B15/14	主分类号	E21B19/087
代理机构		代理人
主权项
地址

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