GB191505834A - Improvements in or relating to the Construction of Heating Conductors for Thermic Telephones. - Google Patents

Improvements in or relating to the Construction of Heating Conductors for Thermic Telephones.

Info

Publication number
GB191505834A
GB191505834A GB191505834DA GB191505834A GB 191505834 A GB191505834 A GB 191505834A GB 191505834D A GB191505834D A GB 191505834DA GB 191505834 A GB191505834 A GB 191505834A
Authority
GB
United Kingdom
Prior art keywords
relating
construction
heating conductors
thermic
telephones
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 GB191505834A publication Critical patent/GB191505834A/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
    • 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)
  • Resistance Heating (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Adornments (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
GB191505834D 1915-02-08 1915-04-19 Improvements in or relating to the Construction of Heating Conductors for Thermic Telephones. Expired GB191505834A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE297246X 1915-02-08

Publications (1)

Publication Number Publication Date
GB191505834A true GB191505834A (en) 1916-04-19

Family

ID=32831879

Family Applications (2)

Application Number Title Priority Date Filing Date
GB191505834D Expired GB191505834A (en) 1915-02-08 1915-04-19 Improvements in or relating to the Construction of Heating Conductors for Thermic Telephones.
GB412018A Expired GB120507A (en) 1915-02-08 1918-03-08 Improvements in or relating to the Heating Conductors of Thermic Telephones.

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB412018A Expired GB120507A (en) 1915-02-08 1918-03-08 Improvements in or relating to the Heating Conductors of Thermic Telephones.

Country Status (4)

Country Link
DE (2) DE297246C (enrdf_load_stackoverflow)
FR (2) FR480855A (enrdf_load_stackoverflow)
GB (2) GB191505834A (enrdf_load_stackoverflow)
NL (2) NL4793C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
NL4050C (enrdf_load_stackoverflow)
GB120507A (en) 1918-11-14
FR480855A (fr) 1916-10-04
FR20851E (fr) 1919-07-23
NL4793C (enrdf_load_stackoverflow)
DE309415C (enrdf_load_stackoverflow)
DE297246C (enrdf_load_stackoverflow)

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