AT281151B - Headset for telephones - Google Patents

Headset for telephones

Info

Publication number
AT281151B
AT281151B AT646368A AT646368A AT281151B AT 281151 B AT281151 B AT 281151B AT 646368 A AT646368 A AT 646368A AT 646368 A AT646368 A AT 646368A AT 281151 B AT281151 B AT 281151B
Authority
AT
Austria
Prior art keywords
headset
telephones
Prior art date
Application number
AT646368A
Other languages
German (de)
Original Assignee
Telefunken Patent
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 Telefunken Patent filed Critical Telefunken Patent
Application granted granted Critical
Publication of AT281151B publication Critical patent/AT281151B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6008—Substation equipment, e.g. for use by subscribers including speech amplifiers in the transmitter circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
AT646368A 1967-12-15 1968-07-05 Headset for telephones AT281151B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET0035487 1967-12-15

Publications (1)

Publication Number Publication Date
AT281151B true AT281151B (en) 1970-05-11

Family

ID=7559233

Family Applications (1)

Application Number Title Priority Date Filing Date
AT646368A AT281151B (en) 1967-12-15 1968-07-05 Headset for telephones

Country Status (2)

Country Link
AT (1) AT281151B (en)
DE (1) DE1537724A1 (en)

Also Published As

Publication number Publication date
DE1537724A1 (en) 1970-01-08

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee