GB191513902A - Improvements in or relating to Thermic Telephones. - Google Patents

Improvements in or relating to Thermic Telephones.

Info

Publication number
GB191513902A
GB191513902A GB191513902DA GB191513902A GB 191513902 A GB191513902 A GB 191513902A GB 191513902D A GB191513902D A GB 191513902DA GB 191513902 A GB191513902 A GB 191513902A
Authority
GB
United Kingdom
Prior art keywords
secured
heat
contact
relating
absorbing body
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
English (en)
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.)
DE NL THERMO TELEPHOON MIJ NV
Original Assignee
DE NL THERMO TELEPHOON MIJ NV
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 DE NL THERMO TELEPHOON MIJ NV filed Critical DE NL THERMO TELEPHOON MIJ NV
Publication of GB191513902A publication Critical patent/GB191513902A/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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/002—Transducers other than those covered by groups H04R9/00 - H04R21/00 using electrothermic-effect transducer

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Thermal Insulation (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB191513902D 1915-04-26 1915-09-30 Improvements in or relating to Thermic Telephones. Expired GB191513902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE296331T 1915-04-26

Publications (1)

Publication Number Publication Date
GB191513902A true GB191513902A (en) 1916-09-28

Family

ID=32605103

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191513902D Expired GB191513902A (en) 1915-04-26 1915-09-30 Improvements in or relating to Thermic Telephones.

Country Status (4)

Country Link
DE (1) DE296331C (https=)
FR (1) FR481479A (https=)
GB (1) GB191513902A (https=)
NL (1) NL4110C (https=)

Also Published As

Publication number Publication date
FR481479A (fr) 1916-12-08
NL4110C (https=)
DE296331C (https=)

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