CA981109A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Collapsing mechanism for revolving door wings
Assignee: International Steel Co
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Filing: 1973-07-24
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Granted: 1976-01-06
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Expires: 1993-07-24
Abstract
No abstract record available.
Inventors
- 👤 Amuel E. Sheckells
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-28 16:13
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/90; E05; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; Y; Y10; Y10S; Y10S292/00; Y10S292/38
Claims Analysis
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References Cited (Backward Citations)
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