US PATENT SUBCLASS 33 / 252
.~.~ Movable relative to base

Current as of: June, 1999
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33 /   HD   GEOMETRICAL INSTRUMENTS

227  DF  STRAIGHT-LINE LIGHT RAY TYPE {20}
233  DF  .~ Gun sight {9}
252.~.~ Movable relative to base {2}
253  DF  .~.~.~> Plural sights, pivotally selective
254  DF  .~.~.~> Vertically {3}

DEFINITION

Classification: 33/252

(under subclass 233) Device wherein the sight may be moved with respect to the gun barrel or stock upon which it is mounted.

(1) Note. Included in this and indented subclasses are patents to sights which are movable to compensate for range, windage or the velocity of a moving target.