FR50919E - Telephone handsets - Google Patents

Telephone handsets

Info

Publication number
FR50919E
FR50919E FR50919DA FR50919E FR 50919 E FR50919 E FR 50919E FR 50919D A FR50919D A FR 50919DA FR 50919 E FR50919 E FR 50919E
Authority
FR
France
Prior art keywords
telephone handsets
handsets
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
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 FR50919E publication Critical patent/FR50919E/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
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • 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
    • 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
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
FR50919D 1937-04-28 1939-11-29 Telephone handsets Expired FR50919E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US139492A US2191993A (en) 1937-04-28 1937-04-28 Telephone hand-set with combined transmitter and dial
GB29560/39A GB533462A (en) 1937-04-28 1939-11-07 Improvements in or relating to hand microtelephones

Publications (1)

Publication Number Publication Date
FR50919E true FR50919E (en) 1941-05-10

Family

ID=26259970

Family Applications (2)

Application Number Title Priority Date Filing Date
FR837211D Expired FR837211A (en) 1937-04-28 1938-04-27 Telephone handsets
FR50919D Expired FR50919E (en) 1937-04-28 1939-11-29 Telephone handsets

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR837211D Expired FR837211A (en) 1937-04-28 1938-04-27 Telephone handsets

Country Status (3)

Country Link
US (1) US2191993A (en)
FR (2) FR837211A (en)
GB (2) GB501696A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2506715A (en) * 1947-08-22 1950-05-09 Automatic Elect Lab Loud-speaking telephone station set with separate acoustic passages to the receiver and transmitter
US2624808A (en) * 1949-03-30 1953-01-06 Nat Pneumatic Co Inc Signaling switch device
US3207827A (en) * 1961-01-09 1965-09-21 Itek Corp Method of making helical article
US3277243A (en) * 1962-12-19 1966-10-04 Burroughs Corp Telephone adapter

Also Published As

Publication number Publication date
GB533462A (en) 1941-02-13
FR837211A (en) 1939-02-06
GB501696A (en) 1939-03-03
US2191993A (en) 1940-02-27

Similar Documents

Publication Publication Date Title
FR880734A (en) Telephone headsets
CH235876A (en) Telephone installation.
FR847000A (en) Telephone device
FR920293A (en) Microphone
FR50919E (en) Telephone handsets
FR866096A (en) Circuits for telephone sets
CH194900A (en) Telephone receiver.
FR832273A (en) Convertible telephone sets
CH220361A (en) Telephone.
FR835245A (en) phone earpiece
FR847317A (en) Telephone installation
FR821637A (en) Briefcase
FR834047A (en) Telephone headset
DK59385C (en) Telephone set.
CH236356A (en) Telephone.
CH220359A (en) Extension piece to telephone device.
FR48846E (en) Mobile scale
FR853409A (en) phone earpiece
FR848445A (en) Telephone installation
DK58387C (en) Automatic Telephone
CH202986A (en) Pay phone.
CH203255A (en) Extension device.
FR852417A (en) Telephone amplifier
FR837325A (en) Advanced microphone
DK55785C (en) Telephone handset.