US PATENT SUBCLASS 396 / 477
.~.~.~ Including gear means


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}
475  DF  .~.~ Having mechanically delayed closing {3}
477.~.~.~ Including gear means


DEFINITION

Classification: 396/477

Including gear means:

(under subclass 475) Subject matter wherein the means to hold the shutter open is provided by a member with one or more protuberances or grooves which interengage and cooperate with mating protuberances on, or grooves in, another member to form therewith a positive force means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

, FOR 899, for a foreign art collection involving a pivoting or rotating blade shutter having a gear retard means.