Stern ramp retracting and releasing device for ship and synchronous retracting and releasing method
The invention relates to a marine stern ramp retracting and releasing device and a synchronous retracting and releasing method.The retracting and releasing device is installed on the inner side bulkhead of a left board and the inner side of a right board of a cabin, and a transmission device serves...
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Format: | Patent |
Sprache: | chi ; eng |
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