FR660215A - Diaphragme perfectionné - Google Patents

Diaphragme perfectionné

Info

Publication number
FR660215A
FR660215A FR660215DA FR660215A FR 660215 A FR660215 A FR 660215A FR 660215D A FR660215D A FR 660215DA FR 660215 A FR660215 A FR 660215A
Authority
FR
France
Prior art keywords
diaphragm
advanced
advanced diaphragm
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
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.)
Cliftophone & Records Ltd
Original Assignee
Cliftophone & Records 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 Cliftophone & Records Ltd filed Critical Cliftophone & Records Ltd
Application granted granted Critical
Publication of FR660215A publication Critical patent/FR660215A/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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
FR660215D 1927-12-08 1928-09-07 Diaphragme perfectionné Expired FR660215A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3328227A GB307450A (en) 1927-12-08 1927-12-08 Improvements in or relating to conical diaphragms for sound-reproducing and like devices

Publications (1)

Publication Number Publication Date
FR660215A true FR660215A (fr) 1929-07-09

Family

ID=10350891

Family Applications (1)

Application Number Title Priority Date Filing Date
FR660215D Expired FR660215A (fr) 1927-12-08 1928-09-07 Diaphragme perfectionné

Country Status (2)

Country Link
FR (1) FR660215A (fr)
GB (1) GB307450A (fr)

Also Published As

Publication number Publication date
GB307450A (en) 1929-03-08

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