CH97890A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Method and device for enciphering and deciphering secret scripts formed from accidentals on typewriters.
Assignee: Lecher Joseph
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Filing: 1921-08-23
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Granted: —
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Expires: 1941-08-23
Abstract
No abstract record available.
Inventors
- 👤 Lecher Joseph
- 👤 Meyer Friedrich August
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-05 03:57
CPC Classifications
G; G09; G09C; G09C3/00; G09C3/02; C; C09; C09B; C09B31/00; C09B31/02; C09B31/12; C09B31/14; C09B45/00; C09B45/02; C09B45/24; C09B45/26
Claims Analysis
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References Cited (Backward Citations)
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