BE465051A - - Google Patents
Info
- Publication number
- BE465051A BE465051A BE465051DA BE465051A BE 465051 A BE465051 A BE 465051A BE 465051D A BE465051D A BE 465051DA BE 465051 A BE465051 A BE 465051A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/57—Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
- H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR263813X | 1944-04-20 | ||
| FR20544X | 1944-05-02 | ||
| FR240744X | 1944-07-24 | ||
| FR310146X | 1946-01-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE465051A true BE465051A (xx) |
Family
ID=27445017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE465051D BE465051A (xx) | 1944-04-20 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2512981A (xx) |
| BE (1) | BE465051A (xx) |
| CH (1) | CH263813A (xx) |
| GB (1) | GB599705A (xx) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2839608A (en) * | 1954-05-12 | 1958-06-17 | Leon A Marsh | Telephone signaling device |
| US2907828A (en) * | 1958-05-01 | 1959-10-06 | Frederick A Tegeier | Burglar alarm system |
| US3131260A (en) * | 1960-03-24 | 1964-04-28 | Evans James | Automatic alarm system |
| US3095478A (en) * | 1960-03-25 | 1963-06-25 | Frontier Mfg Company | Telephone alarm device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US528075A (en) * | 1894-10-23 | The morris pctehs co | ||
| US750270A (en) * | 1904-01-26 | Electric signaling apparatus | ||
| US848636A (en) * | 1902-07-07 | 1907-04-02 | Albert Barrett | Fire and police signaling system. |
| US955056A (en) * | 1903-08-15 | 1910-04-12 | Cons Fire Alarm Company | Combined telephone and fire-alarm or kindred service system. |
| US970886A (en) * | 1907-09-27 | 1910-09-20 | Gamewell Fire Alarm Telegraph | Fire and police telegraph system. |
| US1039667A (en) * | 1911-02-25 | 1912-09-24 | James H Mccartney | Emergency signaling device for telephone-exchange systems. |
| US1225935A (en) * | 1914-02-25 | 1917-05-15 | Rochester H Rogers | Fire-alarm telephone transmitting mechanism. |
| US2104998A (en) * | 1934-10-31 | 1938-01-11 | Siemens Ag | Impulse sender |
-
0
- BE BE465051D patent/BE465051A/xx unknown
-
1945
- 1945-05-17 GB GB12418/45A patent/GB599705A/en not_active Expired
- 1945-07-02 US US602740A patent/US2512981A/en not_active Expired - Lifetime
-
1946
- 1946-05-13 CH CH263813D patent/CH263813A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB599705A (en) | 1948-03-18 |
| US2512981A (en) | 1950-06-27 |
| CH263813A (fr) | 1949-09-15 |