FR481479A - Téléphone thermique - Google Patents

Téléphone thermique

Info

Publication number
FR481479A
FR481479A FR481479DA FR481479A FR 481479 A FR481479 A FR 481479A FR 481479D A FR481479D A FR 481479DA FR 481479 A FR481479 A FR 481479A
Authority
FR
France
Prior art keywords
phone
thermal
thermal phone
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)
French (fr)
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
Application granted granted Critical
Publication of FR481479A publication Critical patent/FR481479A/fr
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)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Thermal Insulation (AREA)
FR481479D 1915-04-26 1916-04-12 Téléphone thermique Expired FR481479A (fr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR481479A true FR481479A (fr) 1916-12-08

Family

ID=32605103

Family Applications (1)

Application Number Title Priority Date Filing Date
FR481479D Expired FR481479A (fr) 1915-04-26 1916-04-12 Téléphone thermique

Country Status (4)

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

Also Published As

Publication number Publication date
GB191513902A (en) 1916-09-28
NL4110C (enrdf_load_stackoverflow)
DE296331C (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
FR480857A (fr) Téléphone thermique
FR481479A (fr) Téléphone thermique
FR480858A (fr) Microphone thermique
CH70118A (de) Bettdecke
CH72344A (de) Kochherd
FR478862A (fr) Hamac-couchette
CH71926A (de) Photogrammeter
CH72540A (fr) Joiont
CH73983A (de) Photogrammeter
CH72892A (de) Thermotelephon
DK21412C (da) Termisk Telefon.
CH71671A (de) Kochherd
CH71619A (fr) Glacière perfectionnée
CH72010A (fr) Cheminée
ES59714A1 (es) Aparato con aislamiento térmico.
FR479484A (fr) Briquet-obus
FR478199A (fr) Étuve-séchoir
FR20906E (fr) Télémètre-hausse
FR20380E (fr) Corset-ceinture
CH71424A (de) Schochenrost
FI6011A (fi) Eldstadsbotten
FI6146A (fi) Lådvedbarkningsmaskin
FI5994A (fi) Randsymaskin
CH75437A (de) Kötzerspulmaschine
FI6023A (fi) Tågskyddsapparater