NL77937C - - Google Patents
Info
- Publication number
- NL77937C NL77937C NL77937DA NL77937C NL 77937 C NL77937 C NL 77937C NL 77937D A NL77937D A NL 77937DA NL 77937 C NL77937 C NL 77937C
- Authority
- NL
- Netherlands
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
- H04M15/04—Recording calls, or communications in printed, perforated or other permanent form
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Color Printing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US724992A US2558476A (en) | 1947-01-29 | 1947-01-29 | District assembler circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL77937C true NL77937C (US06534493-20030318-C00166.png) |
Family
ID=24912694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL77937D NL77937C (US06534493-20030318-C00166.png) | 1947-01-29 |
Country Status (6)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2711794A (en) * | 1955-06-28 | ghertman | ||
| US2684718A (en) * | 1950-06-15 | 1954-07-27 | Ibm | Card punching machine |
| US2744578A (en) * | 1951-11-02 | 1956-05-08 | Bell Telephone Labor Inc | Code tape perforators |
| US2844307A (en) * | 1952-01-29 | 1958-07-22 | Bell Telephone Labor Inc | Record-controlled apparatus |
| US2780410A (en) * | 1952-01-29 | 1957-02-05 | Bell Telephone Labor Inc | Tape-to-card converter circuit |
| US2913171A (en) * | 1954-12-09 | 1959-11-17 | Ibm | Sorter-collator for tape recorded data |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2112951A (en) * | 1934-04-28 | 1938-04-05 | Bell Telephone Labor Inc | Telephone system |
| US2386763A (en) * | 1940-08-07 | 1945-10-16 | Bell Telephone Labor Inc | Record controlled system |
| US2473437A (en) * | 1947-01-20 | 1949-06-14 | Bell Telephone Labor Inc | Mechanical perforator |
-
0
- FR FR960375D patent/FR960375A/fr not_active Expired
- NL NL77937D patent/NL77937C/xx active
- BE BE479918D patent/BE479918A/xx unknown
-
1947
- 1947-01-29 US US724992A patent/US2558476A/en not_active Expired - Lifetime
-
1948
- 1948-01-23 GB GB2128/48A patent/GB657553A/en not_active Expired
- 1948-01-29 CH CH288284D patent/CH288284A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB657553A (en) | 1951-09-19 |
| FR960375A (US06534493-20030318-C00166.png) | 1950-04-18 |
| BE479918A (US06534493-20030318-C00166.png) | |
| CH288284A (de) | 1953-01-15 |
| US2558476A (en) | 1951-06-26 |
