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FR587804A - Improvements to automatic and semi-automatic telephone systems - Google Patents

Improvements to automatic and semi-automatic telephone systems

Info

Publication number
FR587804A
FR587804A FR587804DA FR587804A FR 587804 A FR587804 A FR 587804A FR 587804D A FR587804D A FR 587804DA FR 587804 A FR587804 A FR 587804A
Authority
FR
France
Prior art keywords
automatic
semi
telephone systems
automatic telephone
systems
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
Other languages
French (fr)
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR587804A publication Critical patent/FR587804A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Relay Circuits (AREA)
  • Interface Circuits In Exchanges (AREA)
FR587804D 1923-10-24 1924-10-21 Improvements to automatic and semi-automatic telephone systems Expired FR587804A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US670554A US1569936A (en) 1923-10-24 1923-10-24 Machine-switching system

Publications (1)

Publication Number Publication Date
FR587804A true FR587804A (en) 1925-04-24

Family

ID=10132381

Family Applications (1)

Application Number Title Priority Date Filing Date
FR587804D Expired FR587804A (en) 1923-10-24 1924-10-21 Improvements to automatic and semi-automatic telephone systems

Country Status (3)

Country Link
US (1) US1569936A (en)
FR (1) FR587804A (en)
GB (1) GB240605A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2596795A (en) * 1947-02-07 1952-05-13 Clinton W Schulze Faucet construction

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR996361A (en) * 1948-10-25 1951-12-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2596795A (en) * 1947-02-07 1952-05-13 Clinton W Schulze Faucet construction

Also Published As

Publication number Publication date
GB240605A (en) 1925-10-08
US1569936A (en) 1926-01-19

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