Patent US178988A successfully refreshed from Google Patents.
DE520481C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Spacers for the iron inlays of reinforced concrete structures
Assignee: Individual
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Filing: —
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Granted: 1931-03-11
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Expires: 1948-03-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-04 21:50
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/16; E04C5/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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