Air return system for air feed drill,申请号US19620212207-传众专利搜索

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发明名称	Air return system for air feed drill
摘要
申请公布号	US3195658(A)	申请公布日期	1965.07.20
申请号	US19620212207	申请日期	1962.07.25
申请人	INGERSOLL-RAND COMPANY	发明人	REED THOMAS S.;TAYLOR HUGH B.
分类号	B23B47/22;E21B1/30;E21B6/00	主分类号	B23B47/22
代理机构		代理人
主权项
地址

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