Improvements in or relating to chains for coal cutters and the like,申请号GB19510005804-传众专利搜索

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发明名称	Improvements in or relating to chains for coal cutters and the like
摘要
申请公布号	GB714251(A)	申请公布日期	1954.08.25
申请号	GB19510005804	申请日期	1951.03.09
申请人	AUSTIN HOY AND COMPANY LIMITED;SIDNEY ERNEST PROCTOR	发明人
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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