GB374946A - Improvements in or relating to telephone handsets or microtelephones - Google Patents
Improvements in or relating to telephone handsets or microtelephonesInfo
- Publication number
- GB374946A GB374946A GB844831A GB844831A GB374946A GB 374946 A GB374946 A GB 374946A GB 844831 A GB844831 A GB 844831A GB 844831 A GB844831 A GB 844831A GB 374946 A GB374946 A GB 374946A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cord
- transmitter
- fin
- capsules
- receiver
- 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
- 239000002775 capsule Substances 0.000 abstract 4
- 239000004020 conductor Substances 0.000 abstract 4
- 239000002184 metal Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE387028D BE387028A (enrdf_load_stackoverflow) | 1931-03-19 | ||
GB844831A GB374946A (en) | 1931-03-19 | 1931-03-19 | Improvements in or relating to telephone handsets or microtelephones |
FR732906D FR732906A (fr) | 1931-03-19 | 1932-03-10 | Perfectionnements aux microtéléphones ou aux appareils téléphoniques combinés |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB844831A GB374946A (en) | 1931-03-19 | 1931-03-19 | Improvements in or relating to telephone handsets or microtelephones |
Publications (1)
Publication Number | Publication Date |
---|---|
GB374946A true GB374946A (en) | 1932-06-20 |
Family
ID=9852678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB844831A Expired GB374946A (en) | 1931-03-19 | 1931-03-19 | Improvements in or relating to telephone handsets or microtelephones |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE387028A (enrdf_load_stackoverflow) |
FR (1) | FR732906A (enrdf_load_stackoverflow) |
GB (1) | GB374946A (enrdf_load_stackoverflow) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2482148A (en) * | 1945-09-10 | 1949-09-20 | Beckman Carl | Electrodynamic telephone handset |
US2607857A (en) * | 1949-01-12 | 1952-08-19 | Wheeler Insulated Wire Co Inc | Telephone handset |
DE957232C (de) * | 1954-01-31 | 1957-01-31 | Standard Elek K Ag | Geteilter Handapparat fuer Fernsprecher |
FR2477812A1 (fr) * | 1980-03-04 | 1981-09-11 | Landis & Gyr Ag | Combine telephonique a ecouteur et microphone proteges par un capot indevissable |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB656723A (en) * | 1948-01-10 | 1951-08-29 | Edward Shipton | Improvements in or relating to telephone instruments |
-
0
- BE BE387028D patent/BE387028A/xx unknown
-
1931
- 1931-03-19 GB GB844831A patent/GB374946A/en not_active Expired
-
1932
- 1932-03-10 FR FR732906D patent/FR732906A/fr not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2482148A (en) * | 1945-09-10 | 1949-09-20 | Beckman Carl | Electrodynamic telephone handset |
US2607857A (en) * | 1949-01-12 | 1952-08-19 | Wheeler Insulated Wire Co Inc | Telephone handset |
DE957232C (de) * | 1954-01-31 | 1957-01-31 | Standard Elek K Ag | Geteilter Handapparat fuer Fernsprecher |
FR2477812A1 (fr) * | 1980-03-04 | 1981-09-11 | Landis & Gyr Ag | Combine telephonique a ecouteur et microphone proteges par un capot indevissable |
Also Published As
Publication number | Publication date |
---|---|
FR732906A (fr) | 1932-09-28 |
BE387028A (enrdf_load_stackoverflow) |
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