RACK-AND-PINION FOR MECHANICAL MINERS FOR MINING OF UNDERGROUND DEPOSITS,ESPECIALLY FOR CUTTERSTKI PODZEMNYKH MESTOROZHDENIJJ,A OSOBENNO DLJA VRUBNYKH MASHIN,申请号PL19780206703-传众专利搜索

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发明名称	RACK-AND-PINION FOR MECHANICAL MINERS FOR MINING OF UNDERGROUND DEPOSITS,ESPECIALLY FOR CUTTERSTKI PODZEMNYKH MESTOROZHDENIJJ,A OSOBENNO DLJA VRUBNYKH MASHIN
摘要
申请公布号	PL119445(B1)	申请公布日期	1981.12.31
申请号	PL19780206703	申请日期	1978.05.11
申请人		发明人
分类号	B61B13/02;E21C29/02;E21C29/22;(IPC1-7):E21C29/22	主分类号	B61B13/02
代理机构		代理人
主权项
地址

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