SUN ELECTRIC MFG COMPANY innovation strategy

Patent filings in countries

#	Country	Total Patents
#1	United States	20

#	Industry
#1	Telecommunications
#2	Audio-visual technology
#3	Electrical machinery and energy

#	Technology
#1	Telephonic communication
#2	Selecting
#3	Loudspeakers and microphones
#4	Electric switches

Publication	Filing date	Title
US711640A	1901-03-07	Telephone-receiver.
US646697A	1899-05-17	Telephone-exchange system.
US646682A	1899-04-21	Telephone-exchange system.
US646681A	1899-04-21	Telephone-exchange system.
US646683A	1899-04-21	Telephone-exchange system.
US649868A	1899-04-21	Telephone-exchange system.
US646696A	1899-04-21	Telephone-exchange system.
US646680A	1898-12-24	Telephone-exchange system.
US646679A	1898-12-24	Telephone-exchange system.
US646694A	1898-08-20	Telephone-exchange system.
US646678A	1898-08-20	Telephone-transmitter.
US646695A	1898-08-20	Telephone-exchange system.
US646692A	1898-06-16	Telephone-exchange system.
US646676A	1898-06-16	Combined annunciator and spring-jack.
US646675A	1898-06-16	Telephone-exchange system.
US646691A	1898-06-16	Circuit-protective device.
US646677A	1898-06-16	Telephone-exchange system.
US646693A	1898-06-16	Annunciator and spring-jack.
US646690A	1898-04-01	Intercommunicating-telephone system and apparatus.
US646689A	1897-07-01	Telephone system.