BE484699A - - Google Patents
Info
- Publication number
- BE484699A BE484699A BE484699DA BE484699A BE 484699 A BE484699 A BE 484699A BE 484699D A BE484699D A BE 484699DA BE 484699 A BE484699 A BE 484699A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of dc pulses
- H04Q1/34—Impulse regenerators with mechanical or other non-electrical marking arrangements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K21/00—Information retrieval from punched cards designed for manual use or handling by machine; Apparatus for handling such cards, e.g. marking or correcting
- G06K21/04—Information retrieval from punched cards designed for manual use or handling by machine; Apparatus for handling such cards, e.g. marking or correcting in which coincidence of markings is sensed optically, e.g. peek-a-boo system
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US78402447 US2668877A (en) | 1947-11-04 | 1947-11-04 | Electromechanical translator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE484699A true BE484699A (fi) |
Family
ID=25131115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE484699D BE484699A (fi) | 1947-11-04 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE484699A (fi) |
| FR (1) | FR969165A (fi) |
| NL (3) | NL141509C (fi) |
-
0
- NL NL146647D patent/NL146647C/xx active
- NL NL72142D patent/NL72142C/xx active
- BE BE484699D patent/BE484699A/xx unknown
- NL NL141509D patent/NL141509C/xx active
-
1948
- 1948-07-13 FR FR969165D patent/FR969165A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL72142C (fi) | |
| FR969165A (fr) | 1950-12-15 |
| NL146647C (fi) | |
| NL141509C (fi) |