FR700378A - Perfectionnements aux hauts-parleurs - Google Patents

Perfectionnements aux hauts-parleurs

Info

Publication number
FR700378A
FR700378A FR700378DA FR700378A FR 700378 A FR700378 A FR 700378A FR 700378D A FR700378D A FR 700378DA FR 700378 A FR700378 A FR 700378A
Authority
FR
France
Prior art keywords
enhancements
loudspeaker
loudspeaker enhancements
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)
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.)
TRANS-LUX DAYLIGHT PICTURE SCREEN Corp
Trans Lux Daylight Picture Screen Corp
Original Assignee
TRANS-LUX DAYLIGHT PICTURE SCREEN Corp
Trans Lux Daylight Picture Screen Corp
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 TRANS-LUX DAYLIGHT PICTURE SCREEN Corp, Trans Lux Daylight Picture Screen Corp filed Critical TRANS-LUX DAYLIGHT PICTURE SCREEN Corp
Application granted granted Critical
Publication of FR700378A publication Critical patent/FR700378A/fr
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR700378D 1930-08-07 1930-08-07 Perfectionnements aux hauts-parleurs Expired FR700378A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR700378T 1930-08-07

Publications (1)

Publication Number Publication Date
FR700378A true FR700378A (fr) 1931-02-27

Family

ID=9050018

Family Applications (1)

Application Number Title Priority Date Filing Date
FR700378D Expired FR700378A (fr) 1930-08-07 1930-08-07 Perfectionnements aux hauts-parleurs

Country Status (1)

Country Link
FR (1) FR700378A (fr)

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