Patent CH212657A successfully refreshed from Google Patents.
CH212657A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Installation of ventilation of closed premises, in particular of shelters for gas defense.
Assignee: Gambarotta Vittorio
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Filing: 1939-06-26
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Granted: —
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Expires: 1959-06-26
Abstract
No abstract record available.
Inventors
- 👤 Gambarotta Vittorio
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-26 13:39
CPC Classifications
A; A62; A62B; A62B13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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