FR474224A - Perfectionnements aux phonographes - Google Patents

Perfectionnements aux phonographes

Info

Publication number
FR474224A
FR474224A FR474224DA FR474224A FR 474224 A FR474224 A FR 474224A FR 474224D A FR474224D A FR 474224DA FR 474224 A FR474224 A FR 474224A
Authority
FR
France
Prior art keywords
phonographs
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)
Inventor
Auguste Fontanon
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 FR474224A publication Critical patent/FR474224A/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)
FR474224D 1913-11-10 1913-11-10 Perfectionnements aux phonographes Expired FR474224A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR474224T 1913-11-10

Publications (1)

Publication Number Publication Date
FR474224A true FR474224A (fr) 1915-02-12

Family

ID=1512213

Family Applications (1)

Application Number Title Priority Date Filing Date
FR474224D Expired FR474224A (fr) 1913-11-10 1913-11-10 Perfectionnements aux phonographes

Country Status (1)

Country Link
FR (1) FR474224A (fr)

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