FR682427A - Perfectionnements aux haut-parleurs - Google Patents

Perfectionnements aux haut-parleurs

Info

Publication number
FR682427A
FR682427A FR682427DA FR682427A FR 682427 A FR682427 A FR 682427A FR 682427D A FR682427D A FR 682427DA FR 682427 A FR682427 A FR 682427A
Authority
FR
France
Prior art keywords
enhancements
loudspeaker
loudspeaker enhancements
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)
French (fr)
Inventor
Andre Blondel
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 filed Critical
Application granted granted Critical
Publication of FR682427A publication Critical patent/FR682427A/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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/02—Loudspeakers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • 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)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
FR682427D 1928-09-29 1929-09-28 Perfectionnements aux haut-parleurs Expired FR682427A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE682427X 1928-09-29

Publications (1)

Publication Number Publication Date
FR682427A true FR682427A (fr) 1930-05-27

Family

ID=3877796

Family Applications (1)

Application Number Title Priority Date Filing Date
FR682427D Expired FR682427A (fr) 1928-09-29 1929-09-28 Perfectionnements aux haut-parleurs

Country Status (2)

Country Link
BE (3) BE355577A (xx)
FR (1) FR682427A (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114536823A (zh) * 2020-11-24 2022-05-27 魏灵炯 一种扬声器振膜的生产工艺

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114536823A (zh) * 2020-11-24 2022-05-27 魏灵炯 一种扬声器振膜的生产工艺

Also Published As

Publication number Publication date
BE358577A (xx)
BE355577A (xx)
BE354610A (xx)

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