Patent · US Expired

Copying apparatus

US4171781A · kind A · utility

13Cited by
6References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 20, 1978
Grant dateOct 23, 1979
Priority date
Expiry dateMar 20, 1998

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2215/00518
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A copying apparatus with a paper roll wound on a sleeve, a pair of roll holders having lugs frictionally held in the ends of the sleeve, each roll holder being provided with a journal pin adapted to engage an associated guide mounted on the copying apparatus.

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