US2382893A - Telephone system - Google Patents

Telephone system Download PDF

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Publication number
US2382893A
US2382893A US550070A US55007044A US2382893A US 2382893 A US2382893 A US 2382893A US 550070 A US550070 A US 550070A US 55007044 A US55007044 A US 55007044A US 2382893 A US2382893 A US 2382893A
Authority
US
United States
Prior art keywords
aug
telephone system
sheet
sheets
mckim
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 - Lifetime
Application number
US550070A
Other languages
English (en)
Inventor
Mckim Burton
Myers Oscar
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
Bell Telephone Laboratories 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 Bell Telephone Laboratories Inc filed Critical Bell Telephone Laboratories Inc
Priority to US550096A priority Critical patent/US2396797A/en
Priority to US550070A priority patent/US2382893A/en
Application granted granted Critical
Publication of US2382893A publication Critical patent/US2382893A/en
Priority to NL137339A priority patent/NL72500C/xx
Priority to FR960189D priority patent/FR960189A/fr
Priority to GB5091/48A priority patent/GB654092A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Paper (AREA)
US550070A 1944-08-18 1944-08-18 Telephone system Expired - Lifetime US2382893A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US550096A US2396797A (en) 1944-08-18 1944-08-18 Trouble lockout arrangement
US550070A US2382893A (en) 1944-08-18 1944-08-18 Telephone system
NL137339A NL72500C (enEXAMPLES) 1944-08-18 1947-12-22
FR960189D FR960189A (enEXAMPLES) 1944-08-18 1948-01-27
GB5091/48A GB654092A (en) 1944-08-18 1948-02-20 Improvements in or relating to telephone systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US550070A US2382893A (en) 1944-08-18 1944-08-18 Telephone system

Publications (1)

Publication Number Publication Date
US2382893A true US2382893A (en) 1945-08-14

Family

ID=24195617

Family Applications (1)

Application Number Title Priority Date Filing Date
US550070A Expired - Lifetime US2382893A (en) 1944-08-18 1944-08-18 Telephone system

Country Status (4)

Country Link
US (1) US2382893A (enEXAMPLES)
FR (1) FR960189A (enEXAMPLES)
GB (1) GB654092A (enEXAMPLES)
NL (1) NL72500C (enEXAMPLES)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2550755A (en) * 1947-09-24 1951-05-01 Automatic Elect Lab Toll switching telephone system
US2633501A (en) * 1946-03-09 1953-03-31 Int Standard Electric Corp Long distance telephone exchange system
US2744965A (en) * 1947-07-10 1956-05-08 Automatic Elect Lab Carrier type intertoll dialing telephone system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633501A (en) * 1946-03-09 1953-03-31 Int Standard Electric Corp Long distance telephone exchange system
US2744965A (en) * 1947-07-10 1956-05-08 Automatic Elect Lab Carrier type intertoll dialing telephone system
US2550755A (en) * 1947-09-24 1951-05-01 Automatic Elect Lab Toll switching telephone system

Also Published As

Publication number Publication date
FR960189A (enEXAMPLES) 1950-04-14
NL72500C (enEXAMPLES) 1953-06-15
GB654092A (en) 1951-06-06

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