US PATENT SUBCLASS 396 / FOR 748
.~.~ Ratchet/pawl type (354/448)

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

FOR 710  DF  AUTOMATIC EXPOSURE CONTROL SYSTEM OR DEVICE (354/410) {8}
FOR 746  DF  .~ Having circuit for controlling diaphragm only (354/446) {7}
FOR 748.~.~ Ratchet/pawl type (354/448)

DEFINITION

Classification: 396/FOR.748

Ratchet/pawl type: (354/448)

Subject matter under subclass FOR 746 in which the diaphragm is stopped at a specific aperture by engagement of a pawl with a ratchet.