CH213282A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Recording device with a circular writing surface for recording at least one operating status of machines over several time periods.
Assignee: V D O Tachometer A G
•
Filing: 1939-05-27
•
Granted: —
•
Expires: 1959-05-27
Abstract
No abstract record available.
Inventors
- 👤 A-G V D O Tachometer
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-01 06:16
CPC Classifications
—
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.