NL8540C - - Google Patents
Info
- Publication number
- NL8540C NL8540C NL8540DA NL8540C NL 8540 C NL8540 C NL 8540C NL 8540D A NL8540D A NL 8540DA NL 8540 C NL8540 C NL 8540C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Structure Of Telephone Exchanges (AREA)
- Exchange Systems With Centralized Control (AREA)
- Keying Circuit Devices (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US246234A US1345016A (en) | 1918-07-22 | 1918-07-22 | Telephone system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8540C true NL8540C (2) |
Family
ID=22929842
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL10705D NL10705C (2) | 1918-07-22 | ||
| NL8540D NL8540C (2) | 1918-07-22 | ||
| NL8539D NL8539C (2) | 1918-07-22 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL10705D NL10705C (2) | 1918-07-22 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8539D NL8539C (2) | 1918-07-22 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1345016A (2) |
| FR (3) | FR510985A (2) |
| GB (3) | GB143908A (2) |
| NL (3) | NL8539C (2) |
-
0
- NL NL10705D patent/NL10705C/xx active
- NL NL8540D patent/NL8540C/xx active
- NL NL8539D patent/NL8539C/xx active
-
1918
- 1918-07-22 US US246234A patent/US1345016A/en not_active Expired - Lifetime
-
1919
- 1919-07-21 FR FR510985A patent/FR510985A/fr not_active Expired
- 1919-07-22 GB GB14590/20A patent/GB143908A/en not_active Expired
- 1919-07-22 GB GB13813/20A patent/GB143551A/en not_active Expired
- 1919-07-22 GB GB18233/19A patent/GB130329A/en not_active Expired
-
1920
- 1920-03-27 FR FR22908A patent/FR22908E/fr not_active Expired
- 1920-03-27 FR FR22909A patent/FR22909E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL8539C (2) | |
| FR510985A (fr) | 1920-12-14 |
| GB143908A (en) | 1920-10-22 |
| FR22909E (fr) | 1921-09-06 |
| GB130329A (en) | 1920-10-22 |
| FR22908E (fr) | 1921-09-06 |
| US1345016A (en) | 1920-06-29 |
| GB143551A (en) | 1920-10-22 |
| NL10705C (2) |