NL8398C - - Google Patents
Info
- Publication number
- NL8398C NL8398C NL8398DA NL8398C NL 8398 C NL8398 C NL 8398C NL 8398D A NL8398D A NL 8398DA NL 8398 C NL8398 C NL 8398C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
- E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
- E05F1/1008—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring parallel with the pivot axis
- E05F1/1016—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring parallel with the pivot axis with a canted-coil torsion spring
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US324264A US1547456A (en) | 1919-09-18 | 1919-09-18 | Trunk circuits for automatic telephone systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8398C true NL8398C (xx) |
Family
ID=23262819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8398D NL8398C (xx) | 1919-09-18 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1547456A (xx) |
| DE (1) | DE400385C (xx) |
| FR (1) | FR536351A (xx) |
| NL (1) | NL8398C (xx) |
-
0
- NL NL8398D patent/NL8398C/xx active
-
1919
- 1919-09-18 US US324264A patent/US1547456A/en not_active Expired - Lifetime
-
1920
- 1920-08-13 DE DEA33927D patent/DE400385C/de not_active Expired
- 1920-09-17 FR FR536351D patent/FR536351A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE400385C (de) | 1924-08-06 |
| FR536351A (fr) | 1922-05-01 |
| US1547456A (en) | 1925-07-28 |