CH235802A - Electro-dynamic equipment for sound recorders and reproducers. - Google Patents

Electro-dynamic equipment for sound recorders and reproducers.

Info

Publication number
CH235802A
CH235802A CH235802DA CH235802A CH 235802 A CH235802 A CH 235802A CH 235802D A CH235802D A CH 235802DA CH 235802 A CH235802 A CH 235802A
Authority
CH
Switzerland
Prior art keywords
reproducers
electro
dynamic equipment
sound recorders
recorders
Prior art date
Application number
Other languages
French (fr)
Inventor
Anonyme Hermann Thoren Societe
Original Assignee
Thorens Hermann Sa
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 Thorens Hermann Sa filed Critical Thorens Hermann Sa
Publication of CH235802A publication Critical patent/CH235802A/en

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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
CH235802D 1943-04-30 1943-04-30 Electro-dynamic equipment for sound recorders and reproducers. CH235802A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH904172X 1943-04-30

Publications (1)

Publication Number Publication Date
CH235802A true CH235802A (en) 1944-12-31

Family

ID=4546774

Family Applications (2)

Application Number Title Priority Date Filing Date
CH235802D CH235802A (en) 1943-04-30 1943-04-30 Electro-dynamic equipment for sound recorders and reproducers.
CH257304D CH257304A (en) 1943-04-30 1944-08-21 Electro-dynamic equipment for sound recorders and reproducers.

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH257304D CH257304A (en) 1943-04-30 1944-08-21 Electro-dynamic equipment for sound recorders and reproducers.

Country Status (2)

Country Link
CH (2) CH235802A (en)
FR (2) FR904172A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB687363A (en) * 1949-05-04 1953-02-11 Hans Christian Hansen Improvements in electrodynamic pick-up's

Also Published As

Publication number Publication date
CH257304A (en) 1948-09-30
FR904172A (en) 1945-10-29
FR54083E (en) 1947-05-29

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