FR671926A - Speaker Improvements - Google Patents

Speaker Improvements

Info

Publication number
FR671926A
FR671926A FR671926DA FR671926A FR 671926 A FR671926 A FR 671926A FR 671926D A FR671926D A FR 671926DA FR 671926 A FR671926 A FR 671926A
Authority
FR
France
Prior art keywords
speaker
speaker improvements
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)
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.)
IDEAL WERKE AG fur DRAHTLOSE T
Original Assignee
IDEAL WERKE AG fur DRAHTLOSE T
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 IDEAL WERKE AG fur DRAHTLOSE T filed Critical IDEAL WERKE AG fur DRAHTLOSE T
Application granted granted Critical
Publication of FR671926A publication Critical patent/FR671926A/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
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR671926D 1928-04-05 1929-03-22 Speaker Improvements Expired FR671926A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE309115X 1928-04-05

Publications (1)

Publication Number Publication Date
FR671926A true FR671926A (en) 1929-12-20

Family

ID=6121926

Family Applications (1)

Application Number Title Priority Date Filing Date
FR671926D Expired FR671926A (en) 1928-04-05 1929-03-22 Speaker Improvements

Country Status (2)

Country Link
FR (1) FR671926A (en)
GB (1) GB309115A (en)

Also Published As

Publication number Publication date
GB309115A (en) 1929-06-06

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