FR617464A - Haut-parleur - Google Patents

Haut-parleur

Info

Publication number
FR617464A
FR617464A FR617464DA FR617464A FR 617464 A FR617464 A FR 617464A FR 617464D A FR617464D A FR 617464DA FR 617464 A FR617464 A FR 617464A
Authority
FR
France
Prior art keywords
loud speaker
loud
speaker
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.)
HOPKINS CORP
Ambac International Corp
Original Assignee
HOPKINS CORP
American Bosch Magneto Corp
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 HOPKINS CORP, American Bosch Magneto Corp filed Critical HOPKINS CORP
Application granted granted Critical
Publication of FR617464A publication Critical patent/FR617464A/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)
  • Diaphragms For Electromechanical Transducers (AREA)
FR617464D 1926-02-05 1926-06-12 Haut-parleur Expired FR617464A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US265538XA 1926-02-05 1926-02-05

Publications (1)

Publication Number Publication Date
FR617464A true FR617464A (fr) 1927-02-19

Family

ID=21832468

Family Applications (1)

Application Number Title Priority Date Filing Date
FR617464D Expired FR617464A (fr) 1926-02-05 1926-06-12 Haut-parleur

Country Status (3)

Country Link
DE (1) DE464609C (fr)
FR (1) FR617464A (fr)
GB (1) GB265538A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127650A (en) * 1982-08-07 1984-04-11 Univ Liverpool Moving coil loudspeaker

Also Published As

Publication number Publication date
GB265538A (en) 1927-03-31
DE464609C (de) 1928-08-22

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