NL24801C - - Google Patents
Info
- Publication number
- NL24801C NL24801C NL24801DA NL24801C NL 24801 C NL24801 C NL 24801C NL 24801D A NL24801D A NL 24801DA NL 24801 C NL24801 C NL 24801C
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE269941X | 1926-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL24801C true NL24801C (en) |
Family
ID=5998026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL24801D NL24801C (en) | 1926-04-26 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1740123A (en) |
| FR (1) | FR633287A (en) |
| GB (1) | GB269941A (en) |
| NL (1) | NL24801C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2820098A (en) * | 1952-03-19 | 1958-01-14 | Skogsberg Erik Lennart | Signaling system |
-
0
- NL NL24801D patent/NL24801C/xx active
-
1927
- 1927-04-25 GB GB11059/27A patent/GB269941A/en not_active Expired
- 1927-04-25 FR FR633287D patent/FR633287A/en not_active Expired
- 1927-10-19 US US227150A patent/US1740123A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR633287A (en) | 1928-01-26 |
| GB269941A (en) | 1928-07-25 |
| US1740123A (en) | 1929-12-17 |