DE618147C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for recording or playing back sound recordings on tape or wire-shaped carriers
Assignee: Tobis Tonbild Syndikat GmbH
•
Filing: 1931-09-20
•
Granted: 1935-09-02
•
Expires: 1951-09-20
Abstract
No abstract record available.
Inventors
- 👤 Dipl-Ing Dr Oskar Kron
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-28 23:44
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.