Cutter bit holder,申请号US19580782049-传众专利搜索

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发明名称	Cutter bit holder
摘要
申请公布号	US3030088(A)	申请公布日期	1962.04.17
申请号	US19580782049	申请日期	1958.12.22
申请人	POTASH COMPANY OF AMERICA	发明人	DEVINE HAROLD AARON;MCLAUGHLIN ASA LLOYD
分类号	E21C35/193	主分类号	E21C35/193
代理机构		代理人
主权项
地址

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