CH200730A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Process for the production of cores for the production of hollow metal castings.
Assignee: Johannes Croning
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Filing: 1937-08-24
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Granted: —
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Expires: 1957-08-24
Abstract
No abstract record available.
Inventors
- 👤 Johannes Croning
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-24 22:14
CPC Classifications
B; B22; B22C; B22C9/00; B22C9/10; B22C9/106
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References Cited (Backward Citations)
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