发明授权
US4113227A Cam lock with vertical plunger 失效
CAM垂直摇臂

Cam lock with vertical plunger
摘要:
A coupling device for coupling together heavy cargo pipes or the like which includes releasable plunger locking means to prevent rotation of a cam element in a locked condition and permit rotation in an unlocked condition. A liquid exit is also provided to prevent liquid accumulation and freezing together of relatively movable locking parts.
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