Pick boxes for coal and like cutting machines,申请号US19540453896-传众专利搜索

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发明名称	Pick boxes for coal and like cutting machines
摘要
申请公布号	US2853283(A)	申请公布日期	1958.09.23
申请号	US19540453896	申请日期	1954.09.02
申请人	COOK JAMES A	发明人	COOK JAMES A.
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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