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FR868230A - Call transmitting devices - Google Patents

Call transmitting devices

Info

Publication number
FR868230A
FR868230A FR868230DA FR868230A FR 868230 A FR868230 A FR 868230A FR 868230D A FR868230D A FR 868230DA FR 868230 A FR868230 A FR 868230A
Authority
FR
France
Prior art keywords
transmitting devices
call transmitting
call
devices
transmitting
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 FR868230A publication Critical patent/FR868230A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Telephone Set Structure (AREA)
  • Lock And Its Accessories (AREA)
FR868230D 1940-03-22 1940-12-20 Call transmitting devices Expired FR868230A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US325347A US2315344A (en) 1940-03-22 1940-03-22 Call transmitter
US393329A US2307537A (en) 1940-03-22 1941-05-14 Telephone call transmitter

Publications (1)

Publication Number Publication Date
FR868230A true FR868230A (en) 1941-12-24

Family

ID=42664849

Family Applications (1)

Application Number Title Priority Date Filing Date
FR868230D Expired FR868230A (en) 1940-03-22 1940-12-20 Call transmitting devices

Country Status (2)

Country Link
US (3) US2315344A (en)
FR (1) FR868230A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416713A (en) * 1943-07-30 1947-03-04 Bell Telephone Labor Inc Call transmitter
BE466584A (en) * 1944-04-21

Also Published As

Publication number Publication date
US2307537A (en) 1943-01-05
US2352724A (en) 1944-07-04
US2315344A (en) 1943-03-30

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