BE434755A - - Google Patents
Info
- Publication number
- BE434755A BE434755A BE434755DA BE434755A BE 434755 A BE434755 A BE 434755A BE 434755D A BE434755D A BE 434755DA BE 434755 A BE434755 A BE 434755A
- Authority
- BE
- Belgium
- Prior art keywords
- drum
- generators
- pins
- drums
- signs
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
- G09C3/00—Typewriters for ciphering or deciphering cryptographic text
- G09C3/04—Typewriters for ciphering or deciphering cryptographic text wherein the operative connections between the keys and the type-bars are automatically and continuously permuted, during operation, by a coding or key member
- G09C3/06—Typewriters for ciphering or deciphering cryptographic text wherein the operative connections between the keys and the type-bars are automatically and continuously permuted, during operation, by a coding or key member the connections being mechanical
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE434755A true BE434755A (pm) |
Family
ID=93825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE434755D BE434755A (pm) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE434755A (pm) |
-
0
- BE BE434755D patent/BE434755A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CH341841A (fr) | Machine à écrire à tête imprimante | |
| EP1960847B1 (fr) | Mouvement de chronographe pour piece d'horlogerie | |
| FR2518455A1 (fr) | Imprimeuse flexographique | |
| BE434755A (pm) | ||
| BE396539A (pm) | ||
| BE423098A (pm) | ||
| BE548155A (pm) | ||
| CH157356A (fr) | Machine écrivant ligne par ligne sur une surface plane. | |
| BE413347A (pm) | ||
| CH330883A (fr) | Machine comptable | |
| BE506241A (pm) | ||
| CH225264A (fr) | Dispositif d'impression. | |
| CH105274A (fr) | Appareil pour enregistrer des indications représentées par des perforations de cartes porte-indications pour buts de statistique. | |
| CH187454A (fr) | Appareil cryptographique. | |
| BE428662A (pm) | ||
| CH210227A (fr) | Mécanisme d'impression pour machine enregistreuse. | |
| CH364515A (fr) | Machine rotative à polycopier et à imprimer | |
| BE404051A (pm) | ||
| CH148146A (fr) | Machine à écrire pour mettre en code et pour déchiffrer des messages. | |
| BE514002A (pm) | ||
| BE410332A (pm) | ||
| CH349278A (fr) | Duplicateur hectographique | |
| BE449285A (pm) | ||
| BE359536A (pm) | ||
| BE520845A (pm) |