Patent search ap:("SASKATCHEWAN POTASH") AND inv:"MCLANGHLIN ASA L" Page 1

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发明授权
Propulsion system for continuous mining machine 失效
Title translation: 连续采矿机推进系统

公开(公告)号：US3363945A

公开(公告)日：1968-01-16

申请号：US47893865

申请日：1965-08-11

Applicant: SASKATCHEWAN POTASH

Inventor： MCLANGHLIN ASA L , FREDERICK PRIESNITZ

IPC: E21C29/00 , E21C29/22

CPC classification number: E21C29/22 , E21C29/00

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