FR449309A - Perfectionnement aux pavillons de phonographes - Google Patents

Perfectionnement aux pavillons de phonographes

Info

Publication number
FR449309A
FR449309A FR449309DA FR449309A FR 449309 A FR449309 A FR 449309A FR 449309D A FR449309D A FR 449309DA FR 449309 A FR449309 A FR 449309A
Authority
FR
France
Prior art keywords
pavilions
phonograph
further training
training
phonograph pavilions
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
Joannes Spazin
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.)
JOANNES SPAZIN
Original Assignee
JOANNES SPAZIN
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 JOANNES SPAZIN filed Critical JOANNES SPAZIN
Application granted granted Critical
Publication of FR449309A publication Critical patent/FR449309A/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)
FR449309D 1912-10-10 1912-10-10 Perfectionnement aux pavillons de phonographes Expired FR449309A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR449309T 1912-10-10

Publications (1)

Publication Number Publication Date
FR449309A true FR449309A (fr) 1913-02-24

Family

ID=1489844

Family Applications (1)

Application Number Title Priority Date Filing Date
FR449309D Expired FR449309A (fr) 1912-10-10 1912-10-10 Perfectionnement aux pavillons de phonographes

Country Status (1)

Country Link
FR (1) FR449309A (fr)

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