GEN TELEPHONE LAB innovation strategy

Patent filings in countries

#	Industry
#1	Telecommunications
#2	Electrical machinery and energy
#3	Basic communication technologies
#4	Computer technology
#5	IT methods for management
#6	Control

#	Technology
#1	Selecting
#2	Telephonic communication
#3	Electric switches
#4	Transmission
#5	Pulse technique
#6	Static stores
#7	Data processing systems
#8	Control or regulating systems
#9	Amplifiers
#10	Electric digital data processing

Publication	Filing date	Title
CA565967A	None	Toll switching telephone systems
CA544830A	None	Electronic ringing frequency generator
CA546624A	None	Telephone systems
CA553847A	None	Telephone paystation
CA565969A	None	Automatic telephone systems provided with party lines
CA544834A	None	Electronic ringing current generator
CA578016A	None	Damping plate
CA546625A	None	Switch wiper
CA588435A	None	Telephone receiver
CA565968A	None	Discriminating coin counter for a telephone pay-station
CA596508A	None	Telephone line lockout arrangement
CA581795A	None	Mountings for telephone handsets
CA599827A	None	Automatic toll ticketing system
CA551625A	None	Switching apparatus for telephone systems
CA567850A	None	Test boards for telephone systems
CA576329A	None	Calling line identification apparatus
CA564187A	None	Time announcing system
CA564188A	None	Selective signalling system
CA564190A	None	Telephone switch hook assembly
CA578015A	None	Coin identifying circuit