US PATENT SUBCLASS 414 / 138.9
.~.~.~ Serial marine vessels supporting conveyor

Current as of: June, 1999
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414 /   HD   MATERIAL OR ARTICLE HANDLING

137.1  DF  MARINE LOADING OR UNLOADING SYSTEM {14}
137.9  DF  .~ Marine vessel to marine vessel {6}
138.7  DF  .~.~ Marine vessel to/from lighter to/from shore {3}
138.9.~.~.~ Serial marine vessels supporting conveyor

DEFINITION

Classification: 414/138.9

Serial marine vessels supporting conveyor:

(under subclass 138.7) Apparatus wherein the buoyant vehicle intended to load or unload the other includes a plurality of distinct buoyant vehicles for supporting the loading or unloading structure on the water.