DE1176593B
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Connection for double-walled, insulated weather ducts
Assignee: STEINKOHLENBERGWERK FRIEDRICH
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Filing: 1962-10-08
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Granted: —
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Expires: 1982-10-08
Abstract
No abstract record available.
Inventors
- 👤 Dipl-Berging Basilius Isajiw
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-22 21:08
CPC Classifications
E; E21; E21F; E21F1/00; E21F1/04; E21F1/06
Claims Analysis
Total Claims: 0
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