FR421853A - Acoustic capsule without diaphragm for talking machines - Google Patents

Acoustic capsule without diaphragm for talking machines

Info

Publication number
FR421853A
FR421853A FR421853A FR421853DA FR421853A FR 421853 A FR421853 A FR 421853A FR 421853 A FR421853 A FR 421853A FR 421853D A FR421853D A FR 421853DA FR 421853 A FR421853 A FR 421853A
Authority
FR
France
Prior art keywords
diaphragm
talking machines
acoustic capsule
capsule
acoustic
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
FR421853A
Other languages
French (fr)
Inventor
Louis Lumiere
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR421853A publication Critical patent/FR421853A/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)
FR421853A 1909-12-30 1909-12-30 Acoustic capsule without diaphragm for talking machines Expired FR421853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR421853T 1909-12-30

Publications (1)

Publication Number Publication Date
FR421853A true FR421853A (en) 1911-03-07

Family

ID=1464858

Family Applications (1)

Application Number Title Priority Date Filing Date
FR421853A Expired FR421853A (en) 1909-12-30 1909-12-30 Acoustic capsule without diaphragm for talking machines

Country Status (2)

Country Link
AU (1) AU25411B (en)
FR (1) FR421853A (en)

Also Published As

Publication number Publication date
AU25411B (en) 1911-02-07

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