BE501002A - - Google Patents
Info
- Publication number
- BE501002A BE501002A BE501002DA BE501002A BE 501002 A BE501002 A BE 501002A BE 501002D A BE501002D A BE 501002DA BE 501002 A BE501002 A BE 501002A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
- H04M1/315—Clutches; Spring assemblies; Speed regulators, e.g. centrifugal brakes
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D13/00—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Crushing And Grinding (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL307821X | 1950-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE501002A true BE501002A (en:Method) |
Family
ID=19783544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE501002D BE501002A (en:Method) | 1950-02-06 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE501002A (en:Method) |
| CH (1) | CH307821A (en:Method) |
| DE (1) | DE881364C (en:Method) |
| FR (1) | FR1039620A (en:Method) |
| NL (1) | NL76393C (en:Method) |
-
0
- BE BE501002D patent/BE501002A/xx unknown
- NL NL76393D patent/NL76393C/xx active
-
1951
- 1951-02-06 FR FR1039620D patent/FR1039620A/fr not_active Expired
- 1951-02-06 CH CH307821D patent/CH307821A/fr unknown
- 1951-02-06 DE DEJ3756A patent/DE881364C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL76393C (en:Method) | |
| DE881364C (de) | 1953-06-29 |
| FR1039620A (fr) | 1953-10-08 |
| CH307821A (fr) | 1955-06-15 |