US PATENT SUBCLASS 396 / 493
.~.~ Pivoting or rotating blade type

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


396 /   HD   PHOTOGRAPHY

439  DF  CAMERA DETAIL {15}
452  DF  .~ Shutter {12}
493.~.~ Pivoting or rotating blade type {3}
494  DF  .~.~.~> Having auxiliary light blocking
495  DF  .~.~.~> Shutter blade moves continuously from closed to open to closed position {1}
497  DF  .~.~.~> Plural oscillating blades {4}

DEFINITION

Classification: 396/493

Pivoting or rotating blade type:

(under subclass 452) Subject matter wherein the shutter includes means which is mounted for movement in one direction only or is rotatably reciprocated about a fixed axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

, FOR 890+, for foreign art collections involving a shutter having pivoting or rotating blade.