Continuous miner with conveying means,申请号US19540415671-传众专利搜索

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发明名称	Continuous miner with conveying means
摘要
申请公布号	US2722409(A)	申请公布日期	1955.11.01
申请号	US19540415671	申请日期	1954.03.11
申请人	GOODMAN MANUFACTURING COMPANY	发明人	BERGMANN ERNST R.
分类号	E21F13/02	主分类号	E21F13/02
代理机构		代理人
主权项
地址

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