.~.~> Having bearing means between extensible sections
DEFINITION
Classification: 212/348
Extensible by sliding sections:
(under subclass 347) Subject matter wherein the elongated structural member comprises telescoping segments whereby the overall length of the member can be changed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
177, for a boom* whose length is changed by assembling or disassembling boom sections.
204, for a boom supported on an extensible mast.
230+, for extensible booms which are mounted for horizontal swinging movement.
264, for extensible booms which are mounted for vertical swinging movement only.
294+, for a boom or mast having an extending and collapsing feature for transport only. 296, for an extensible tower which collapses to a nonuseposition.
SEE OR SEARCH CLASS
52, Static Structures (e.g., Buildings),
118+, for a miscellaneous elongated structural member which is comprised of telescoping segments and is mounted to a base for tilting movement relative thereto.
