Patent DE690633C successfully refreshed from Google Patents.
DE690633C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Surface cooler, especially for chimney coolers
Assignee: EDMUND ROSER DR ING
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Filing: 1937-08-13
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Granted: 1940-05-03
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Expires: 1957-08-13
Abstract
No abstract record available.
Inventors
- 👤 Dr-Ing Edmund Roser
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-01 18:38
CPC Classifications
F; F28; F28F; F28F25/00; F28F25/02; F28F25/08; F28F25/087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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