CA174689A - Machine switching telephone system - Google Patents

Machine switching telephone system

Info

Publication number
CA174689A
CA174689A CA000174689A CA174689DA CA174689A CA 174689 A CA174689 A CA 174689A CA 000174689 A CA000174689 A CA 000174689A CA 174689D A CA174689D A CA 174689DA CA 174689 A CA174689 A CA 174689A
Authority
CA
Canada
Prior art keywords
telephone system
machine switching
switching telephone
machine
telephone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000174689A
Other languages
French (fr)
Inventor
J. N. Reynolds
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of CA174689A publication Critical patent/CA174689A/en
Expired legal-status Critical Current

Links

CA000174689A 1915-12-30 1915-12-30 Machine switching telephone system Expired CA174689A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA174689T 1915-12-30

Publications (1)

Publication Number Publication Date
CA174689A true CA174689A (en) 1917-01-23

Family

ID=45294342

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000174689A Expired CA174689A (en) 1915-12-30 1915-12-30 Machine switching telephone system

Country Status (1)

Country Link
CA (1) CA174689A (en)

Similar Documents

Publication Publication Date Title
CA171654A (en) Telephone system
CA174689A (en) Machine switching telephone system
CA169040A (en) Telephone switching machine
CA173380A (en) Machine switching telephone exchange system
CA169171A (en) Telephone switching system
CA166559A (en) Machine switching telephone system
CA174975A (en) Telephone switchboard
CA175425A (en) Telephone switching system
CA174223A (en) Telephone system
CA177382A (en) Telephone system
CA174221A (en) Telephone system
CA173901A (en) Telephone system
CA173546A (en) Telephone system
CA173377A (en) Telephone system
CA173192A (en) Telephone system
CA167868A (en) Telephone system
CA172415A (en) Telephone system
CA172245A (en) Telephone system
CA172010A (en) Telephone system
CA170627A (en) Telephone system
CA170253A (en) Telephone system
CA169132A (en) Telephone system
CA167858A (en) Telephone system
CA175397A (en) Telephone system
CA181300A (en) Telephone system