US PATENT SUBCLASS 440 / 55
.~.~ Having restraining means


Current as of: June, 1999
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440 /   HD   MARINE PROPULSION

49  DF  SCREW PROPELLER {12}
53  DF  .~ With means effecting or facilitating movement of propulsion unit or a segment of the propulsion unit (e.g., tilting or steering) {9}
55.~.~ Having restraining means {1}
56  DF  .~.~.~> With releasing means when propulsion unit hits obstruction


DEFINITION

Classification: 440/55

Having restraining means:

(under subclass 53) Device wherein a means is provided to prevent movement of the propulsion unit from its normal operating position.