US PATENT SUBCLASS 212 / 309
.~ Having horizontally and vertically swinging boom

Current as of: June, 1999
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212 /   HD   TRAVERSING HOISTS

307  DF  SHIP MOUNTED OR FLOATING (E.G., A CRANE FIXED TO A PLATFORM ADAPTED TO FLOAT) {2}
309.~ Having horizontally and vertically swinging boom {1}
310  DF  .~.~> Cable actuated horizontally and vertically {1}

DEFINITION

Classification: 212/309

Having horizontally and vertically swinging boom:

(under subclass 307) Subject matter including a boom* pivotally mounted on the vessel or platform for movement about two mutually orthogonal axes, one disposed vertically and the other horizontally.

SEE OR SEARCH THIS CLASS, SUBCLASS:

232+, for other horizontally and vertically swinging booms.