NL78663C - - Google Patents
Info
- Publication number
- NL78663C NL78663C NL144451A NL144451A NL78663C NL 78663 C NL78663 C NL 78663C NL 144451 A NL144451 A NL 144451A NL 144451 A NL144451 A NL 144451A NL 78663 C NL78663 C NL 78663C
- Authority
- NL
- Netherlands
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L19/00—Arrangements for interlocking between points and signals by means of a single interlocking device, e.g. central control
- B61L19/06—Interlocking devices having electrical operation
- B61L19/14—Interlocking devices having electrical operation with electrical locks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanisms For Operating Contacts (AREA)
- Contacts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB200248A GB693481A (en) | 1948-01-22 | 1948-01-22 | Improvements in or relating to electrical switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL78663C true NL78663C (en) | 1955-07-16 |
Family
ID=9731871
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL144451D NL144451B (en) | 1948-01-22 | 1949-01-21 | GAS LASER DEVICE. |
| NL144451A NL78663C (en) | 1948-01-22 | 1949-01-21 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL144451D NL144451B (en) | 1948-01-22 | 1949-01-21 | GAS LASER DEVICE. |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH285594A (en) |
| FR (1) | FR981690A (en) |
| GB (1) | GB693481A (en) |
| NL (2) | NL144451B (en) |
-
1948
- 1948-01-22 GB GB200248A patent/GB693481A/en not_active Expired
-
1949
- 1949-01-08 CH CH285594D patent/CH285594A/en unknown
- 1949-01-20 FR FR981690D patent/FR981690A/en not_active Expired
- 1949-01-21 NL NL144451D patent/NL144451B/en unknown
- 1949-01-21 NL NL144451A patent/NL78663C/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| GB693481A (en) | 1953-07-01 |
| FR981690A (en) | 1951-05-29 |
| NL144451B (en) | 1955-03-15 |
| CH285594A (en) | 1952-09-15 |