FR803572A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device intended to facilitate teaching
Assignee: Adolphe Claudel
•
Filing: 1936-03-20
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Granted: 1936-10-03
•
Expires: 1956-03-20
Abstract
No abstract record available.
Inventors
- 👤 Adolphe Claudel
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-27 16:40
CPC Classifications
G; G09; G09B; G09B1/00; G09B1/02; G09B1/04; G09B1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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