GB123727A - Improvements in or relating to Thermic Telephones or like Electrical Apparatus Provided with Heating Conductors. - Google Patents
Improvements in or relating to Thermic Telephones or like Electrical Apparatus Provided with Heating Conductors.Info
- Publication number
- GB123727A GB123727A GB361919A GB361919A GB123727A GB 123727 A GB123727 A GB 123727A GB 361919 A GB361919 A GB 361919A GB 361919 A GB361919 A GB 361919A GB 123727 A GB123727 A GB 123727A
- Authority
- GB
- United Kingdom
- Prior art keywords
- support
- loops
- relating
- lower ends
- apparatus provided
- 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; 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)
- Pipe Accessories (AREA)
- Insulated Conductors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE318481T | 1918-02-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB123727A true GB123727A (en) | 1919-09-04 |
Family
ID=32332101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB361919A Expired GB123727A (en) | 1918-02-15 | 1919-02-14 | Improvements in or relating to Thermic Telephones or like Electrical Apparatus Provided with Heating Conductors. |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE318481C (de) |
FR (1) | FR495443A (de) |
GB (1) | GB123727A (de) |
NL (1) | NL5748C (de) |
-
0
- NL NL5748D patent/NL5748C/xx active
-
1918
- 1918-02-15 DE DE1918318481D patent/DE318481C/de not_active Expired - Lifetime
-
1919
- 1919-02-01 FR FR495443D patent/FR495443A/fr not_active Expired
- 1919-02-14 GB GB361919A patent/GB123727A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE318481C (de) | |
FR495443A (fr) | 1919-10-08 |
NL5748C (de) |
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