US PATENT SUBCLASS 396 / 455
.~.~.~ Having pneumatic or electromagnetic braking or damping

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}
453  DF  .~.~ Having braking or damping {3}
455.~.~.~ Having pneumatic or electromagnetic braking or damping

DEFINITION

Classification: 396/455

Having pneumatic or electromagnetic braking or damping:

(under subclass 453) Subject matter wherein a force to slow the speed is generated by a pressure differential created by a gas medium or by a soft-iron device wound with a current carrying coil of insulated wire.