FR443172A - Diaphragm for talking machines - Google Patents

Diaphragm for talking machines

Info

Publication number
FR443172A
FR443172A FR443172A FR443172DA FR443172A FR 443172 A FR443172 A FR 443172A FR 443172 A FR443172 A FR 443172A FR 443172D A FR443172D A FR 443172DA FR 443172 A FR443172 A FR 443172A
Authority
FR
France
Prior art keywords
diaphragm
talking machines
talking
machines
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
FR443172A
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 FR443172A publication Critical patent/FR443172A/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)
  • Telephone Set Structure (AREA)
  • Casings For Electric Apparatus (AREA)
FR443172A 1911-07-07 1911-07-07 Diaphragm for talking machines Expired FR443172A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR443172T 1911-07-07

Publications (1)

Publication Number Publication Date
FR443172A true FR443172A (en) 1912-09-18

Family

ID=1484274

Family Applications (1)

Application Number Title Priority Date Filing Date
FR443172A Expired FR443172A (en) 1911-07-07 1911-07-07 Diaphragm for talking machines

Country Status (4)

Country Link
AT (1) AT63874B (en)
FR (1) FR443172A (en)
GB (1) GB191215530A (en)
NL (1) NL553C (en)

Also Published As

Publication number Publication date
GB191215530A (en) 1912-11-21
AT63874B (en) 1914-03-10
NL553C (en) 1915-03-01

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