Telephone ringer circuit

Application number :: 88854
Application type :: Standard
Application status :: CEASED
Under opposition :: No
Proceeding type :
Invention title :: Telephone ringer circuit
Inventor :: Barson, Michael
Agent name :: Griffith Hack
Address for service :: GPO Box 4164 SYDNEY NSW 2001
Filing date :: 04 December 1991
Associated companies :
Applicant name :: GPT Limited
Applicant address :: New Century Park P. O. Box 53 Coventry CV3 1HJ United Kingdom
Old name :
Original Source :: Go

Telephone ringer circuit A Standard patent application filed on 04 December 1991 credited to Barson, Michael