CH214505A - Telephone. - Google Patents
Telephone.Info
- Publication number
- CH214505A CH214505A CH214505DA CH214505A CH 214505 A CH214505 A CH 214505A CH 214505D A CH214505D A CH 214505DA CH 214505 A CH214505 A CH 214505A
- Authority
- CH
- Switzerland
- Prior art keywords
- telephone
- Prior art date
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US214505XA | 1937-12-24 | 1937-12-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH214505A true CH214505A (en) | 1941-04-30 |
Family
ID=21804297
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH214505D CH214505A (en) | 1937-12-24 | 1938-12-21 | Telephone. |
CH236356D CH236356A (en) | 1937-12-24 | 1941-11-13 | Telephone. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH236356D CH236356A (en) | 1937-12-24 | 1941-11-13 | Telephone. |
Country Status (5)
Country | Link |
---|---|
BE (2) | BE431789A (en) |
CH (2) | CH214505A (en) |
DE (1) | DE888868C (en) |
FR (2) | FR847962A (en) |
GB (1) | GB511119A (en) |
-
0
- BE BE439754D patent/BE439754A/xx unknown
-
1938
- 1938-12-09 GB GB35970/38A patent/GB511119A/en not_active Expired
- 1938-12-17 DE DEI3204D patent/DE888868C/en not_active Expired
- 1938-12-21 CH CH214505D patent/CH214505A/en unknown
- 1938-12-22 BE BE431789D patent/BE431789A/xx unknown
- 1938-12-23 FR FR847962D patent/FR847962A/en not_active Expired
-
1941
- 1941-11-13 FR FR878171D patent/FR878171A/en not_active Expired
- 1941-11-13 CH CH236356D patent/CH236356A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR878171A (en) | 1943-01-13 |
FR847962A (en) | 1939-10-19 |
GB511119A (en) | 1939-08-14 |
BE431789A (en) | 1939-01-31 |
DE888868C (en) | 1953-09-07 |
CH236356A (en) | 1945-01-31 |
BE439754A (en) |
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