Patent FR873752A successfully refreshed from Google Patents.
FR873752A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Further training in drilling drills
Assignee: Leon-Louis-Emile Thiery
•
Filing: 1941-03-06
•
Granted: 1942-07-20
•
Expires: 1961-03-06
Abstract
No abstract record available.
Inventors
- 👤 Leon-Louis-Emile Thiery
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-24 21:00
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/02; B23B2251/00; B23B2251/18; B23B2251/46
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.