US2267950A - Telephone system - Google Patents

Telephone system Download PDF

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Publication number
US2267950A
US2267950A US357518A US35751840A US2267950A US 2267950 A US2267950 A US 2267950A US 357518 A US357518 A US 357518A US 35751840 A US35751840 A US 35751840A US 2267950 A US2267950 A US 2267950A
Authority
US
United States
Prior art keywords
tubes
line
potential
anode
lines
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
US357518A
Other languages
English (en)
Inventor
William A Rhodes
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 US23388D priority Critical patent/USRE23388E/en
Priority to NL74027D priority patent/NL74027C/xx
Priority to BE477685D priority patent/BE477685A/xx
Priority to US357518A priority patent/US2267950A/en
Priority to US357520A priority patent/US2284870A/en
Application filed by Bell Telephone Laboratories Inc filed Critical Bell Telephone Laboratories Inc
Priority to US357519A priority patent/US2270246A/en
Priority to US388221A priority patent/US2319424A/en
Priority to GB11701/41A priority patent/GB548932A/en
Application granted granted Critical
Publication of US2267950A publication Critical patent/US2267950A/en
Priority to GB9605/42A priority patent/GB554091A/en
Priority to CH273261D priority patent/CH273261A/de
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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/30—Igniting arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/08—Metering calls to called party, i.e. B-party charged for the communication
US357518A 1940-09-20 1940-09-20 Telephone system Expired - Lifetime US2267950A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
BE477685D BE477685A (de) 1940-09-20
US23388D USRE23388E (en) 1940-09-20 Line identification circuit for
NL74027D NL74027C (de) 1940-09-20
US357520A US2284870A (en) 1940-09-20 1940-09-20 Telephone system
US357518A US2267950A (en) 1940-09-20 1940-09-20 Telephone system
US357519A US2270246A (en) 1940-09-20 1940-09-20 Telephone system
US388221A US2319424A (en) 1940-09-20 1941-04-12 Telephone system
GB11701/41A GB548932A (en) 1940-09-20 1941-09-12 Telephone systems
GB9605/42A GB554091A (en) 1940-09-20 1942-07-10 Telephone systems
CH273261D CH273261A (de) 1940-09-20 1947-10-21 Anlage für das Ausmitteln von Leitungen eines Telephonnetzes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US357518A US2267950A (en) 1940-09-20 1940-09-20 Telephone system
US388221A US2319424A (en) 1940-09-20 1941-04-12 Telephone system

Publications (1)

Publication Number Publication Date
US2267950A true US2267950A (en) 1941-12-30

Family

ID=26999687

Family Applications (3)

Application Number Title Priority Date Filing Date
US23388D Expired USRE23388E (en) 1940-09-20 Line identification circuit for
US357518A Expired - Lifetime US2267950A (en) 1940-09-20 1940-09-20 Telephone system
US388221A Expired - Lifetime US2319424A (en) 1940-09-20 1941-04-12 Telephone system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US23388D Expired USRE23388E (en) 1940-09-20 Line identification circuit for

Family Applications After (1)

Application Number Title Priority Date Filing Date
US388221A Expired - Lifetime US2319424A (en) 1940-09-20 1941-04-12 Telephone system

Country Status (5)

Country Link
US (3) US2267950A (de)
BE (1) BE477685A (de)
CH (1) CH273261A (de)
GB (2) GB548932A (de)
NL (1) NL74027C (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424585A (en) * 1941-03-07 1947-07-29 Int Standard Electric Corp Telecommunication system
US2440277A (en) * 1941-08-21 1948-04-27 Int Standard Electric Corp Calling line identification system
US2454770A (en) * 1941-04-25 1948-11-30 Int Standard Electric Corp Identification circuit arrangement for automatic or semiautomatic telephone systems
US2484612A (en) * 1946-05-17 1949-10-11 Bell Telephone Labor Inc Directory number calling line identifier
US2550585A (en) * 1949-04-26 1951-04-24 Bell Telephone Labor Inc Telephone identification circuit
US2562717A (en) * 1947-08-22 1951-07-31 Bell Telephone Labor Inc Dialed number recovery circuit
US2586704A (en) * 1942-08-06 1952-02-19 Automatic Elect Lab Message data recording telephone system
US2594923A (en) * 1948-06-16 1952-04-29 Bell Telephone Labor Inc Call data recording telephone system

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490038A (en) * 1941-06-26 1949-12-06 Int Standard Electric Corp Electrical signaling system
US2698880A (en) * 1943-05-05 1955-01-04 American Telephone & Telegraph Calling line identifier
US2532750A (en) * 1946-08-03 1950-12-05 Automatic Telephone & Elect Calling line identifier having display device at operator's position
US2532926A (en) * 1947-02-14 1950-12-05 Automatic Elect Lab Party line metering, including selection of the meter prior to signaling the operator
US2633498A (en) * 1948-12-29 1953-03-31 Bell Telephone Labor Inc Selecting and two-way translating system
US2639330A (en) * 1949-03-04 1953-05-19 Automatic Elect Lab Calling line identification apparatus
US2594505A (en) * 1949-12-09 1952-04-29 Bell Telephone Labor Inc Calling line identification and registering system
BE500226A (de) * 1949-12-24
US2607891A (en) * 1950-06-10 1952-08-19 Bell Telephone Labor Inc Translating circuits utilizing glow discharge devices

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424585A (en) * 1941-03-07 1947-07-29 Int Standard Electric Corp Telecommunication system
US2454770A (en) * 1941-04-25 1948-11-30 Int Standard Electric Corp Identification circuit arrangement for automatic or semiautomatic telephone systems
US2440277A (en) * 1941-08-21 1948-04-27 Int Standard Electric Corp Calling line identification system
US2586704A (en) * 1942-08-06 1952-02-19 Automatic Elect Lab Message data recording telephone system
US2484612A (en) * 1946-05-17 1949-10-11 Bell Telephone Labor Inc Directory number calling line identifier
US2562717A (en) * 1947-08-22 1951-07-31 Bell Telephone Labor Inc Dialed number recovery circuit
US2594923A (en) * 1948-06-16 1952-04-29 Bell Telephone Labor Inc Call data recording telephone system
US2550585A (en) * 1949-04-26 1951-04-24 Bell Telephone Labor Inc Telephone identification circuit

Also Published As

Publication number Publication date
NL74027C (de)
CH273261A (de) 1951-01-31
GB554091A (en) 1943-06-18
US2319424A (en) 1943-05-18
BE477685A (de)
GB548932A (en) 1942-10-29
USRE23388E (en) 1951-07-10

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