Patent FR1159967A successfully refreshed from Google Patents.
FR1159967A
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Device relating to automatic telephone and telegraph systems
Assignee: Sten Daniel Vigren
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Filing: 1956-09-17
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Granted: 1958-07-04
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Expires: 1976-09-17
Abstract
No abstract record available.
Inventors
- 👤 Sten Daniel Vigren
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 12:16
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/738; H04M1/76; H04M19/00; H04M19/001; H04M3/00; H04M3/40
Claims Analysis
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References Cited (Backward Citations)
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