FR640227A - Perfectionnements aux haut-parleurs - Google Patents

Perfectionnements aux haut-parleurs

Info

Publication number
FR640227A
FR640227A FR640227DA FR640227A FR 640227 A FR640227 A FR 640227A FR 640227D A FR640227D A FR 640227DA FR 640227 A FR640227 A FR 640227A
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
Reginald Iveson Denham
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 FR640227A publication Critical patent/FR640227A/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR640227D 1926-08-30 1927-08-29 Perfectionnements aux haut-parleurs Expired FR640227A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21316/26A GB279587A (en) 1926-08-30 1926-08-30 Improvements in loud speakers

Publications (1)

Publication Number Publication Date
FR640227A true FR640227A (fr) 1928-07-09

Family

ID=10160805

Family Applications (1)

Application Number Title Priority Date Filing Date
FR640227D Expired FR640227A (fr) 1926-08-30 1927-08-29 Perfectionnements aux haut-parleurs

Country Status (5)

Country Link
US (1) US1716772A (enrdf_load_stackoverflow)
DE (1) DE493182C (enrdf_load_stackoverflow)
FR (1) FR640227A (enrdf_load_stackoverflow)
GB (1) GB279587A (enrdf_load_stackoverflow)
NL (1) NL22552C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE493182C (de) 1930-03-05
US1716772A (en) 1929-06-11
NL22552C (enrdf_load_stackoverflow)
GB279587A (en) 1927-11-03

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