CA549831A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Bellows-like screen for heat insulating purposes
Assignee: Individual
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Filing: —
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Granted: 1957-12-10
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Expires: 1974-12-10
Abstract
No abstract record available.
Inventors
- 👤 U. Janson Erik
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-02 07:57
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B1/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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