US PATENT SUBCLASS 52 / 737.5
.~.~.~ Partial sleeve (e.g., collar, etc.)

Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

720.1  DF  SHAFT (I.E., ELONGATED RIGID STRUCTURE) {15}
737.1  DF  .~ Girder, column, etc. {4}
737.4  DF  .~.~ Having shell-like outer layer {1}
737.5.~.~.~ Partial sleeve (e.g., collar, etc.)

DEFINITION

Classification: 52/737.5

Partial sleeve (e.g., collar, etc.):

(under subclass 737.4) Structure including a covering which circumferentially envelopes only a portion of the longitudinal dimension of the shaft.