GB191504353A - Improvements in or relating to Thermic Telephones. - Google Patents
Improvements in or relating to Thermic Telephones.Info
- Publication number
- GB191504353A GB191504353A GB191504353DA GB191504353A GB 191504353 A GB191504353 A GB 191504353A GB 191504353D A GB191504353D A GB 191504353DA GB 191504353 A GB191504353 A GB 191504353A
- Authority
- GB
- United Kingdom
- Prior art keywords
- block
- wires
- sleeve
- central
- holes
- 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
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)
- Manufacturing Of Electrical Connectors (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Resistance Heating (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE283703T | 1914-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB191504353A true GB191504353A (en) | 1915-07-29 |
Family
ID=32605053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB191504353D Expired GB191504353A (en) | 1914-03-25 | 1915-03-19 | Improvements in or relating to Thermic Telephones. |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE283703C (https=) |
| FR (1) | FR510941A (https=) |
| GB (1) | GB191504353A (https=) |
| NL (1) | NL1925C (https=) |
-
1914
- 1914-03-25 DE DE1914283703D patent/DE283703C/de not_active Expired
- 1914-08-06 NL NL5145A patent/NL1925C/xx active
-
1915
- 1915-03-10 FR FR510941D patent/FR510941A/fr not_active Expired
- 1915-03-19 GB GB191504353D patent/GB191504353A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE283703C (https=) | 1915-04-23 |
| FR510941A (fr) | 1920-12-14 |
| NL1925C (https=) | 1917-02-22 |
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