CH113306A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Method for sealing pressurized water pipe tunnels.
Assignee: Alfred Feller
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Filing: 1925-04-24
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Granted: —
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Expires: 1945-04-24
Abstract
No abstract record available.
Inventors
- 👤 Alfred Feller
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-04 20:07
CPC Classifications
E; E02; E02B; E02B9/00; E02B9/02; E02B9/06; Y; Y02; Y02E; Y02E10/00; Y02E10/20
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