Patent · US Expired

Self developing type photographic apparatus

US4165931A · kind A · utility

4Cited by
5References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 23, 1975
Grant dateAug 28, 1979
Priority date
Expiry dateOct 23, 1995

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03B17/52
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A self developing type photographic apparatus wherein one of the spread rollers is driven by one or two toothed racks forming part of or constituting a manually reciprocable handle. One of the racks further rotates a gear which programs the movements of an expelling device for exposed film units, the movements of a device which controls the width of the gap between the spread rollers and the cocking of the shutter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.