Patent DE677612C successfully refreshed from Google Patents.
DE677612C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Light-guiding glass body for the scanning of optical sound recordings
Assignee: Ernst Leitz Wetzlar GmbH
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Filing: 1937-05-08
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Granted: 1939-06-29
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Expires: 1957-05-08
Abstract
No abstract record available.
Inventors
- 👤 Erwin May
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-05 23:12
CPC Classifications
G; G11; G11B; G11B7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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