NL37189C - - Google Patents
Info
- Publication number
- NL37189C NL37189C NL37189DA NL37189C NL 37189 C NL37189 C NL 37189C NL 37189D A NL37189D A NL 37189DA NL 37189 C NL37189 C NL 37189C
- 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
-
- 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
- H04M11/045—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems using recorded signals, e.g. speech
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED64137D DE668410C (de) | 1932-08-27 | 1932-08-27 | Schaltungsanordnung fuer Alarmanlagen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL37189C true NL37189C (https=) |
Family
ID=7058875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL37189D NL37189C (https=) | 1932-08-27 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE668410C (https=) |
| NL (1) | NL37189C (https=) |
-
0
- NL NL37189D patent/NL37189C/xx active
-
1932
- 1932-08-27 DE DED64137D patent/DE668410C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE668410C (de) | 1938-12-13 |