CH190273A - Muschelhörer. - Google Patents

Muschelhörer.

Info

Publication number
CH190273A
CH190273A CH190273DA CH190273A CH 190273 A CH190273 A CH 190273A CH 190273D A CH190273D A CH 190273DA CH 190273 A CH190273 A CH 190273A
Authority
CH
Switzerland
Prior art keywords
hearers
shell
shell hearers
Prior art date
Application number
Other languages
German (de)
English (en)
Inventor
Hausdorf Erich
Original Assignee
Hausdorf Erich
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 Hausdorf Erich filed Critical Hausdorf Erich
Publication of CH190273A publication Critical patent/CH190273A/de

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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1008—Earpieces of the supra-aural or circum-aural type

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
CH190273D 1935-04-09 1935-07-29 Muschelhörer. CH190273A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2134084X 1935-04-09

Publications (1)

Publication Number Publication Date
CH190273A true CH190273A (de) 1937-04-15

Family

ID=7986540

Family Applications (1)

Application Number Title Priority Date Filing Date
CH190273D CH190273A (de) 1935-04-09 1935-07-29 Muschelhörer.

Country Status (4)

Country Link
US (1) US2134084A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE410671A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH190273A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR793231A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
FR793231A (fr) 1936-01-20
BE410671A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US2134084A (en) 1938-10-25

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