NL29660C - - Google Patents
Info
- Publication number
- NL29660C NL29660C NL29660DA NL29660C NL 29660 C NL29660 C NL 29660C NL 29660D A NL29660D A NL 29660DA NL 29660 C NL29660 C NL 29660C
- 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)
- Fire Alarms (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE273710X | 1926-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL29660C true NL29660C (en:Method) |
Family
ID=6016627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL29660D NL29660C (en:Method) | 1926-07-03 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1734781A (en:Method) |
| BE (1) | BE343820A (en:Method) |
| FR (1) | FR636949A (en:Method) |
| GB (1) | GB273710A (en:Method) |
| NL (1) | NL29660C (en:Method) |
-
0
- NL NL29660D patent/NL29660C/xx active
- BE BE343820D patent/BE343820A/xx unknown
-
1927
- 1927-06-27 GB GB17063/27A patent/GB273710A/en not_active Expired
- 1927-07-02 FR FR636949D patent/FR636949A/fr not_active Expired
-
1928
- 1928-01-25 US US249355A patent/US1734781A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB273710A (en) | 1928-08-23 |
| FR636949A (fr) | 1928-04-19 |
| BE343820A (en:Method) | |
| US1734781A (en) | 1929-11-05 |