FR547387A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements made in the establishment of weighing machines for hardness testing of materials
Assignee: Leon Bollee
•
Filing: 1922-02-17
•
Granted: 1922-12-09
•
Expires: 1942-02-17
Abstract
No abstract record available.
Inventors
- 👤 Leon Bollee
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 17:35
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/40; G01N3/42
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.