Patent CH352972A successfully refreshed from Google Patents.
CH352972A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Process to increase the productivity of vacuum wells
Assignee: Wilhelm Dipl Ing Degen
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Filing: 1957-07-20
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Granted: —
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Expires: 1977-07-20
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm Dipl Ing Degen
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-08 14:04
CPC Classifications
E; E03; E03B; E03B5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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