Patent DE509697C successfully refreshed from Google Patents.
DE509697C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for the optical display of electrical signals, in particular for shaft signal systems, in which a symbol appears at the transmitter point in the receiving device with every power supply using indicator bodies, perforated paper strips or lightbulbs
Assignee: Neufeldt & Kuhnke GmbH
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Filing: 1927-01-22
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Granted: 1930-10-11
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Expires: 1947-01-22
Abstract
No abstract record available.
Inventors
- 👤 August Ahrens
- 👤 Dipl-Ing Ernst Heckert
- 👤 Fritz Scheffler
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-25 07:53
CPC Classifications
B; B66; B66B; B66B19/00; B66B19/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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