Noise reduction circuit for multiple gap magnetic head for automatic typewriter
CA 1094219 A · Owner: Dick (A.B.) Company · Inventors: Stamer, Michael E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Inventor Michael Stamer, Abstract of the Disclosure A noise reductive circuit for use with an automatic type- writer of the type that uses a multiple inductance multiple, magnetic gap head for translating information to and from a magnetic recording media is disclosed which includes an electric circuit between one of the inductances to the signal handling channel of the other of the inductances so as to couple to it a noise reducing signal.
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 January 20, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 20, 1998.
- 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.