US1412094A - Automatic telephone system - Google Patents

Automatic telephone system Download PDF

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Publication number
US1412094A
US1412094A US796593A US1913796593A US1412094A US 1412094 A US1412094 A US 1412094A US 796593 A US796593 A US 796593A US 1913796593 A US1913796593 A US 1913796593A US 1412094 A US1412094 A US 1412094A
Authority
US
United States
Prior art keywords
springs
relay
switches
switch
line
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
US796593A
Other languages
English (en)
Inventor
Smith Arthur Bessey
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.)
Automatic Electric Co
Original Assignee
Automatic Electric Co
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 Automatic Electric Co filed Critical Automatic Electric Co
Priority to US796593A priority Critical patent/US1412094A/en
Priority to FR478955A priority patent/FR478955A/fr
Priority to GB191421338D priority patent/GB191421338A/en
Application granted granted Critical
Publication of US1412094A publication Critical patent/US1412094A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Structure Of Telephone Exchanges (AREA)
  • Telephone Set Structure (AREA)
US796593A 1913-10-22 1913-10-22 Automatic telephone system Expired - Lifetime US1412094A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US796593A US1412094A (en) 1913-10-22 1913-10-22 Automatic telephone system
FR478955A FR478955A (fr) 1913-10-22 1914-09-26 Nouveau système de téléphonie automatique
GB191421338D GB191421338A (en) 1913-10-22 1914-10-21 Improvements in or relating to Telephone Systems.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US796593A US1412094A (en) 1913-10-22 1913-10-22 Automatic telephone system

Publications (1)

Publication Number Publication Date
US1412094A true US1412094A (en) 1922-04-11

Family

ID=25168578

Family Applications (1)

Application Number Title Priority Date Filing Date
US796593A Expired - Lifetime US1412094A (en) 1913-10-22 1913-10-22 Automatic telephone system

Country Status (3)

Country Link
US (1) US1412094A (fr)
FR (1) FR478955A (fr)
GB (1) GB191421338A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433347A (en) * 1944-02-24 1947-12-30 Int Standard Electric Corp Telecommunication system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433347A (en) * 1944-02-24 1947-12-30 Int Standard Electric Corp Telecommunication system

Also Published As

Publication number Publication date
FR478955A (fr) 1916-01-26
GB191421338A (en) 1915-10-21

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