Patent · US Expired

Continuous microfilm camera

US4118121A · kind A · utility

1Cited by
3References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 21, 1977
Grant dateOct 3, 1978
Priority date
Expiry dateJul 21, 1997

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03B27/6257
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A continuous microfilm camera transporting original sheets to a picture-taking area. Two parallel opposite guide plates within the picture-taking area from a transit slit of variable width for the original sheets. At least one of the plates is movable relative to the other plate and at least one of the plates is transparent. A magnetic attracting strip is attached to at least one of the plates and provides an attractive force bringing the plates together for straightening the original sheet.

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