FR1235541A - Perfectionnement aux appareils de transmission téléphonique - Google Patents

Perfectionnement aux appareils de transmission téléphonique

Info

Publication number
FR1235541A
FR1235541A FR796035A FR796035A FR1235541A FR 1235541 A FR1235541 A FR 1235541A FR 796035 A FR796035 A FR 796035A FR 796035 A FR796035 A FR 796035A FR 1235541 A FR1235541 A FR 1235541A
Authority
FR
France
Prior art keywords
transmission devices
telephone transmission
advanced training
training
advanced
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
FR796035A
Other languages
English (en)
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.)
ELECTRO UNION S A
Original Assignee
ELECTRO UNION S A
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 ELECTRO UNION S A filed Critical ELECTRO UNION S A
Priority to FR796035A priority Critical patent/FR1235541A/fr
Application granted granted Critical
Publication of FR1235541A publication Critical patent/FR1235541A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR796035A 1959-05-29 1959-05-29 Perfectionnement aux appareils de transmission téléphonique Expired FR1235541A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR796035A FR1235541A (fr) 1959-05-29 1959-05-29 Perfectionnement aux appareils de transmission téléphonique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR796035A FR1235541A (fr) 1959-05-29 1959-05-29 Perfectionnement aux appareils de transmission téléphonique

Publications (1)

Publication Number Publication Date
FR1235541A true FR1235541A (fr) 1960-07-08

Family

ID=8715382

Family Applications (1)

Application Number Title Priority Date Filing Date
FR796035A Expired FR1235541A (fr) 1959-05-29 1959-05-29 Perfectionnement aux appareils de transmission téléphonique

Country Status (1)

Country Link
FR (1) FR1235541A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2330800A1 (de) * 1973-06-16 1975-01-09 Sennheiser Electronic Elektroakustischer wandler nach dem elektrostatischen prinzip und verfahren zu dessen herstellung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2330800A1 (de) * 1973-06-16 1975-01-09 Sennheiser Electronic Elektroakustischer wandler nach dem elektrostatischen prinzip und verfahren zu dessen herstellung

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