Patent CH42409A successfully refreshed from Google Patents.
CH42409A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Device allowing a person to enter an unbreathable gaseous environment
Assignee: Auguste Poncet
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Filing: 1908-01-25
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Granted: —
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Expires: 1928-01-25
Abstract
No abstract record available.
Inventors
- 👤 Auguste Poncet
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-28 06:15
CPC Classifications
—
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