Tool carrying chains for use on coal cutters and the like,申请号US19540478002-传众专利搜索

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发明名称	Tool carrying chains for use on coal cutters and the like
摘要
申请公布号	US2773394(A)	申请公布日期	1956.12.11
申请号	US19540478002	申请日期	1954.12.28
申请人	AUSTIN HOY AND COMPANY LIMITED	发明人	PROCTOR SIDNEY ERNEST
分类号	E21C25/36;F16G13/10	主分类号	E21C25/36
代理机构		代理人
主权项
地址

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