FR852439A - - Google Patents
Info
- Publication number
- FR852439A FR852439A FR852439DA FR852439A FR 852439 A FR852439 A FR 852439A FR 852439D A FR852439D A FR 852439DA FR 852439 A FR852439 A FR 852439A
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/38—Charging, billing or metering by apparatus other than mechanical step-by-step counter type
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
- G06F7/40—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using contact-making devices, e.g. electromagnetic relay
- G06F7/42—Adding; Subtracting
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
- G06F7/46—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using electromechanical counter-type accumulators
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computing Systems (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Computational Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Meter Arrangements (AREA)
- Insulated Conductors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1009238A GB513228A (en) | 1938-04-01 | 1938-04-01 | Improvements in or relating to telecommunication exchange systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR852439A true FR852439A (de) |
Family
ID=9961326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR852439D Active FR852439A (de) | 1938-04-01 |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR852439A (de) |
| GB (2) | GB513228A (de) |
| NL (1) | NL64017C (de) |
-
0
- NL NL64017D patent/NL64017C/xx active
- FR FR852439D patent/FR852439A/fr active Active
-
1938
- 1938-04-01 GB GB1009238A patent/GB513228A/en not_active Expired
- 1938-04-01 GB GB1240739A patent/GB513248A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB513228A (en) | 1939-10-06 |
| NL64017C (de) | |
| GB513248A (en) | 1939-10-06 |