Patent CH139906A successfully refreshed from Google Patents.
CH139906A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Centrifugal fan with a housing designed as a dust collector.
Assignee: Simmen Oscar
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Filing: 1929-06-10
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Granted: —
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Expires: 1949-06-10
Abstract
No abstract record available.
Inventors
- 👤 Simmen Oscar
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-08 09:41
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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