US2236246A - Telephone system - Google Patents

Telephone system Download PDF

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Publication number
US2236246A
US2236246A US295010A US29501039A US2236246A US 2236246 A US2236246 A US 2236246A US 295010 A US295010 A US 295010A US 29501039 A US29501039 A US 29501039A US 2236246 A US2236246 A US 2236246A
Authority
US
United States
Prior art keywords
king
filed sept
march
sheets
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 - Lifetime
Application number
US295010A
Other languages
English (en)
Inventor
Gerald V King
James B Mckim
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
Priority to FR963427D priority Critical patent/FR963427A/fr
Priority to NL69497D priority patent/NL69497C/xx
Application filed by Bell Telephone Laboratories Inc filed Critical Bell Telephone Laboratories Inc
Priority to US295010A priority patent/US2236246A/en
Application granted granted Critical
Publication of US2236246A publication Critical patent/US2236246A/en
Priority to GB6072/48A priority patent/GB642455A/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
    • H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Exchange Systems With Centralized Control (AREA)
US295010A 1939-09-15 1939-09-15 Telephone system Expired - Lifetime US2236246A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR963427D FR963427A (ja) 1939-09-15
NL69497D NL69497C (ja) 1939-09-15
US295010A US2236246A (en) 1939-09-15 1939-09-15 Telephone system
GB6072/48A GB642455A (en) 1939-09-15 1948-02-27 Improvements in or relating to telephone systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US295010A US2236246A (en) 1939-09-15 1939-09-15 Telephone system

Publications (1)

Publication Number Publication Date
US2236246A true US2236246A (en) 1941-03-25

Family

ID=23135844

Family Applications (1)

Application Number Title Priority Date Filing Date
US295010A Expired - Lifetime US2236246A (en) 1939-09-15 1939-09-15 Telephone system

Country Status (4)

Country Link
US (1) US2236246A (ja)
FR (1) FR963427A (ja)
GB (1) GB642455A (ja)
NL (1) NL69497C (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450516A (en) * 1944-01-11 1948-10-05 Bell Telephone Labor Inc Telemetric data transmission system
US2674657A (en) * 1949-04-04 1954-04-06 Itt Primary-secondary-spread crossbar telephone system
US3023281A (en) * 1959-05-21 1962-02-27 Gen Dynamics Corp Electronic switching system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450516A (en) * 1944-01-11 1948-10-05 Bell Telephone Labor Inc Telemetric data transmission system
US2674657A (en) * 1949-04-04 1954-04-06 Itt Primary-secondary-spread crossbar telephone system
US3023281A (en) * 1959-05-21 1962-02-27 Gen Dynamics Corp Electronic switching system

Also Published As

Publication number Publication date
GB642455A (en) 1950-09-06
FR963427A (ja) 1950-07-10
NL69497C (ja)

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