Patent DE540918C successfully refreshed from Google Patents.
DE540918C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Heat exchange device consisting of a number of frame elements separated by thin sheets of sheet metal
Assignee: Individual
•
Filing: 1929-02-17
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Granted: 1931-12-31
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Expires: 1949-02-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-09 02:04
CPC Classifications
F; F28; F28D; F28D9/00; F28D9/0062; F28D9/0075; F28F; F28F2250/00; F28F2250/10; F28F2250/102
Claims Analysis
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References Cited (Backward Citations)
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