FR585125A - Improvements to telephone headsets - Google Patents

Improvements to telephone headsets

Info

Publication number
FR585125A
FR585125A FR585125DA FR585125A FR 585125 A FR585125 A FR 585125A FR 585125D A FR585125D A FR 585125DA FR 585125 A FR585125 A FR 585125A
Authority
FR
France
Prior art keywords
telephone headsets
headsets
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.)
BRANDES Ltd
Original Assignee
BRANDES Ltd
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 BRANDES Ltd filed Critical BRANDES Ltd
Application granted granted Critical
Publication of FR585125A publication Critical patent/FR585125A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058—Manufacture or assembly
    • H04R1/1066—Constructional aspects of the interconnection between earpiece and earpiece support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication
    • H04R5/0335—Earpiece support, e.g. headbands or neckrests

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
FR585125D 1924-08-28 1924-08-28 Improvements to telephone headsets Expired FR585125A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR585125T 1924-08-28

Publications (1)

Publication Number Publication Date
FR585125A true FR585125A (en) 1925-02-21

Family

ID=8959782

Family Applications (1)

Application Number Title Priority Date Filing Date
FR585125D Expired FR585125A (en) 1924-08-28 1924-08-28 Improvements to telephone headsets

Country Status (1)

Country Link
FR (1) FR585125A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012082047A1 (en) 2010-12-14 2012-06-21 Msa Sordin Ab Height adjustment arrangement for an ear cup in a hearing protector unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012082047A1 (en) 2010-12-14 2012-06-21 Msa Sordin Ab Height adjustment arrangement for an ear cup in a hearing protector unit
EP2651355A1 (en) * 2010-12-14 2013-10-23 MSA Sordin AB Height adjustment arrangement for an ear cup in a hearing protector unit
EP2651355A4 (en) * 2010-12-14 2014-10-08 Msa Sordin Ab Height adjustment arrangement for an ear cup in a hearing protector unit

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