US PATENT SUBCLASS 114 / 145 A
.~.~ Trolling plates

Current as of: June, 1999
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114 /   HD   SHIPS

144 R  DF  STEERING MECHANISM {14}
145 R  DF  .~ Speed retarders {1}
145 A.~.~ Trolling plates

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 114/145

Brakes or devices for retarding a ship's motion through the water and also adapted for steering when used separately, usually rudders or projecting plates attached to the vessel's sides.

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209, for checking headway by drags.