Rotary duplicator
CA 1049842 A · Owner: Ritzerfeld, Gerhard · Inventors: Ritzerfeld, Gerhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rotary copying machine adjustable for a full page printing respectively line printing of sheets from a printing form on a rotatable printing drum has a device for moistening the sheets to be printed, and wherein the stroke of a piston pump for supplying liquid to the moistening device is automatically adjusted depending on whether the copying machine is adjusted for printing of a full page or for printing a section, i.e. one or a plurality of lines of a page.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 6, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.