DE902686C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Teaching device to illustrate and calculate geometric figures
Assignee: ERHARD STABENAU
•
Filing: 1951-10-20
•
Granted: 1954-01-25
•
Expires: 1971-10-20
Abstract
No abstract record available.
Inventors
- 👤 Erhard Stabenau
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-06 12:39
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/02; G09B23/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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