FR507969A - Amplificateur de son pour machines parlantes - Google Patents

Amplificateur de son pour machines parlantes

Info

Publication number
FR507969A
FR507969A FR507969A FR507969DA FR507969A FR 507969 A FR507969 A FR 507969A FR 507969 A FR507969 A FR 507969A FR 507969D A FR507969D A FR 507969DA FR 507969 A FR507969 A FR 507969A
Authority
FR
France
Prior art keywords
sound amplifier
talking machines
talking
machines
amplifier
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
FR507969A
Other languages
English (en)
Inventor
William Henry Newcombe
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 FR507969A publication Critical patent/FR507969A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR507969A 1918-10-30 1919-12-30 Amplificateur de son pour machines parlantes Expired FR507969A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NZ507969X 1918-10-30

Publications (1)

Publication Number Publication Date
FR507969A true FR507969A (fr) 1920-09-28

Family

ID=19915876

Family Applications (1)

Application Number Title Priority Date Filing Date
FR507969A Expired FR507969A (fr) 1918-10-30 1919-12-30 Amplificateur de son pour machines parlantes

Country Status (1)

Country Link
FR (1) FR507969A (fr)

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