US PATENT SUBCLASS 396 / 407
.~.~ Prewind

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

387  DF  WITH FILM DRIVE {7}
406  DF  .~ Having significant electronic circuit detail {4}
407.~.~ Prewind

DEFINITION

Classification: 396/407

Prewind:

(under subclass 406) Subject matter wherein the electrical or electronic device controls a mechanism to withdraw the entire length of film from the film container prior to a first exposure.