DE721918C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Method for measuring the impressions on metallic materials during hardness testing after the penetration method
Assignee: Meier & Weichelt Eisen und Sta
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Filing: 1939-05-07
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Granted: 1942-06-23
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Expires: 1959-05-07
Abstract
No abstract record available.
Inventors
- 👤 Dr Phil Franz Roll
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-03 10:45
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/40; G01N3/42
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References Cited (Backward Citations)
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