US PATENT SUBCLASS 440 / 64
.~.~ Having shaft with releasable coupling

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}
64.~.~ Having shaft with releasable coupling

DEFINITION

Classification: 440/64

Having shaft with releasable coupling:

(under subclass 53) Device wherein the propeller is driven by a shaft composed of plural sections which are connected together by a separable connection.