发明名称 VALVE ACTUATING MEANS
摘要 A rigid adapter member, provided with a non-circular wrenching surface which is adapted to mate with a similar non-circular wrenching surface provided in a ratchet wrench, is non-rotatably secured to the handwheel of a valve which is to be actuated.
申请公布号 US3835736(A) 申请公布日期 1974.09.17
申请号 US19730341225 申请日期 1973.03.14
申请人 SUN OIL CO,US 发明人 CAMPBELL G,US;LERNER J,US
分类号 B25B13/58;(IPC1-7):B25B13/58 主分类号 B25B13/58
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