Patent US1499887A successfully refreshed from Google Patents.
CA487254A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Heat exchanger
Assignee: Graham Manufacturing Co Inc
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Filing: —
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Granted: 1952-10-14
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Expires: 1969-10-14
Abstract
No abstract record available.
Inventors
- 👤 M. Graham Harold
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-25 19:35
CPC Classifications
—
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