NL24066C - - Google Patents
Info
- Publication number
- NL24066C NL24066C NL24066DA NL24066C NL 24066 C NL24066 C NL 24066C NL 24066D A NL24066D A NL 24066DA NL 24066 C NL24066 C NL 24066C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/04—Secret communication by frequency scrambling, i.e. by transposing or inverting parts of the frequency band or by inverting the whole band
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB20671/27A GB299915A (en) | 1927-08-05 | 1927-08-05 | Improvements in secret signalling systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL24066C true NL24066C (cg-RX-API-DMAC7.html) |
Family
ID=10149730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL24066D NL24066C (cg-RX-API-DMAC7.html) | 1927-08-05 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US1725032A (cg-RX-API-DMAC7.html) |
| BE (1) | BE351858A (cg-RX-API-DMAC7.html) |
| DE (1) | DE540782C (cg-RX-API-DMAC7.html) |
| FR (1) | FR655685A (cg-RX-API-DMAC7.html) |
| GB (1) | GB299915A (cg-RX-API-DMAC7.html) |
| NL (1) | NL24066C (cg-RX-API-DMAC7.html) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2132205A (en) * | 1937-06-23 | 1938-10-04 | Bell Telephone Labor Inc | Secret transmission |
| EP0139496B1 (en) * | 1983-09-30 | 1990-05-23 | Nippon Telegraph And Telephone Corporation | A radio transmission system for a phase modulation signal |
-
0
- NL NL24066D patent/NL24066C/xx active
- BE BE351858D patent/BE351858A/xx unknown
-
1927
- 1927-07-06 US US203703A patent/US1725032A/en not_active Expired - Lifetime
- 1927-08-05 GB GB20671/27A patent/GB299915A/en not_active Expired
-
1928
- 1928-05-22 DE DEI34457D patent/DE540782C/de not_active Expired
- 1928-06-13 FR FR655685D patent/FR655685A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE540782C (de) | 1932-01-07 |
| BE351858A (cg-RX-API-DMAC7.html) | |
| FR655685A (fr) | 1929-04-23 |
| US1725032A (en) | 1929-08-20 |
| GB299915A (en) | 1928-11-05 |