NL33110C - - Google Patents
Info
- Publication number
- NL33110C NL33110C NL33110DA NL33110C NL 33110 C NL33110 C NL 33110C NL 33110D A NL33110D A NL 33110DA NL 33110 C NL33110 C NL 33110C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/04—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/26—Lead-in insulators; Lead-through insulators
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE695586T | 1930-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL33110C true NL33110C (en:Method) |
Family
ID=6626407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL33110D NL33110C (en:Method) | 1930-07-29 |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT134702B (en:Method) |
| DE (1) | DE695586C (en:Method) |
| FR (1) | FR716404A (en:Method) |
| NL (1) | NL33110C (en:Method) |
-
0
- NL NL33110D patent/NL33110C/xx active
-
1930
- 1930-07-29 DE DE1930695586D patent/DE695586C/de not_active Expired
-
1931
- 1931-04-25 AT AT134702D patent/AT134702B/de active
- 1931-05-01 FR FR716404D patent/FR716404A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AT134702B (de) | 1933-09-25 |
| DE695586C (de) | 1940-08-28 |
| FR716404A (fr) | 1931-12-21 |