FR432407A - Improvements made to resonance boxes for talking machines - Google Patents

Improvements made to resonance boxes for talking machines

Info

Publication number
FR432407A
FR432407A FR432407DA FR432407A FR 432407 A FR432407 A FR 432407A FR 432407D A FR432407D A FR 432407DA FR 432407 A FR432407 A FR 432407A
Authority
FR
France
Prior art keywords
improvements made
talking machines
resonance boxes
boxes
resonance
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.)
Parlophone Records Ltd
Original Assignee
Gramophone Co 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 Gramophone Co Ltd filed Critical Gramophone Co Ltd
Application granted granted Critical
Publication of FR432407A publication Critical patent/FR432407A/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR432407D 1911-07-20 1911-07-20 Improvements made to resonance boxes for talking machines Expired FR432407A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR432407T 1911-07-20

Publications (1)

Publication Number Publication Date
FR432407A true FR432407A (en) 1911-12-06

Family

ID=1474488

Family Applications (1)

Application Number Title Priority Date Filing Date
FR432407D Expired FR432407A (en) 1911-07-20 1911-07-20 Improvements made to resonance boxes for talking machines

Country Status (1)

Country Link
FR (1) FR432407A (en)

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