FR613256A - Further training in telephone headsets - Google Patents

Further training in telephone headsets

Info

Publication number
FR613256A
FR613256A FR613256DA FR613256A FR 613256 A FR613256 A FR 613256A FR 613256D A FR613256D A FR 613256DA FR 613256 A FR613256 A FR 613256A
Authority
FR
France
Prior art keywords
further training
telephone headsets
headsets
telephone
training
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.)
RADIA
Original Assignee
RADIA
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 RADIA filed Critical RADIA
Application granted granted Critical
Publication of FR613256A publication Critical patent/FR613256A/en
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
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR613256D 1926-03-23 1926-03-23 Further training in telephone headsets Expired FR613256A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR613256T 1926-03-23

Publications (1)

Publication Number Publication Date
FR613256A true FR613256A (en) 1926-11-13

Family

ID=8979390

Family Applications (1)

Application Number Title Priority Date Filing Date
FR613256D Expired FR613256A (en) 1926-03-23 1926-03-23 Further training in telephone headsets

Country Status (1)

Country Link
FR (1) FR613256A (en)

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