Patent DE504653C successfully refreshed from Google Patents.
DE504653C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for monitoring railway operations
Assignee: SAXBY SIGNAL Co Ltd
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Filing: 1928-04-24
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Granted: 1930-08-12
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Expires: 1948-04-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-02 14:00
CPC Classifications
B; B61; B61L; B61L3/00; B61L3/16; B61L3/22; B61L3/221
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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