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FR775279A - Electric diaphragm for phonograph records - Google Patents

Electric diaphragm for phonograph records

Info

Publication number
FR775279A
FR775279A FR775279DA FR775279A FR 775279 A FR775279 A FR 775279A FR 775279D A FR775279D A FR 775279DA FR 775279 A FR775279 A FR 775279A
Authority
FR
France
Prior art keywords
electric diaphragm
phonograph records
phonograph
records
diaphragm
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.)
Grass & Worff
Original Assignee
Grass & Worff
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 Grass & Worff filed Critical Grass & Worff
Application granted granted Critical
Publication of FR775279A publication Critical patent/FR775279A/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
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR775279D 1934-05-29 1934-06-18 Electric diaphragm for phonograph records Expired FR775279A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE775279X 1934-05-29

Publications (1)

Publication Number Publication Date
FR775279A true FR775279A (en) 1934-12-22

Family

ID=6686267

Family Applications (1)

Application Number Title Priority Date Filing Date
FR775279D Expired FR775279A (en) 1934-05-29 1934-06-18 Electric diaphragm for phonograph records

Country Status (1)

Country Link
FR (1) FR775279A (en)

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