FR14452E - Phonographic reproducer - Google Patents

Phonographic reproducer

Info

Publication number
FR14452E
FR14452E FR14452DA FR14452E FR 14452 E FR14452 E FR 14452E FR 14452D A FR14452D A FR 14452DA FR 14452 E FR14452 E FR 14452E
Authority
FR
France
Prior art keywords
phonographic reproducer
phonographic
reproducer
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
French (fr)
Inventor
Frederic-Stephen Boerries
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.)
FREDERIC-STEPHEN BOERRIES
Original Assignee
FREDERIC-STEPHEN BOERRIES
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 FREDERIC-STEPHEN BOERRIES filed Critical FREDERIC-STEPHEN BOERRIES
Application granted granted Critical
Publication of FR14452E publication Critical patent/FR14452E/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
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR14452D 1910-06-22 1911-06-19 Phonographic reproducer Expired FR14452E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR417518T 1910-06-22
FR14452T 1911-06-19

Publications (1)

Publication Number Publication Date
FR14452E true FR14452E (en) 1911-12-19

Family

ID=1356360

Family Applications (1)

Application Number Title Priority Date Filing Date
FR14452D Expired FR14452E (en) 1910-06-22 1911-06-19 Phonographic reproducer

Country Status (1)

Country Link
FR (1) FR14452E (en)

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