DE651660C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Iron expansion of routes, tunnels or the like. Structures made of spirally continuous profile iron
Assignee: Individual
•
Filing: 1931-12-11
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Granted: 1939-04-06
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Expires: 1951-12-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-29 12:08
CPC Classifications
E; E21; E21D; E21D11/00; E21D11/14; E21D11/15; E21D11/18; E21D11/20; E21D11/22; E21D5/00; E21D5/06
Claims Analysis
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References Cited (Backward Citations)
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