GB512827A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Improvements in or relating to electric signalling systems
Assignee: STC PLC
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Filing: 1938-02-22
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Granted: —
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Expires: 1958-02-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-10-23 12:46
CPC Classifications
H; H03; H03M; H03M7/00; H03M7/30; H03M7/40; H03M7/4025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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