Patent JPH11118925A successfully refreshed from Google Patents.
DE677613C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Write and take-off head for magnetograpmme
Assignee: Siemens and Halske AG
•
Filing: 1936-08-19
•
Granted: 1939-06-29
•
Expires: 1956-08-19
Abstract
No abstract record available.
Inventors
- 👤 Dipl-Ing Hans Von Lohr
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 12:10
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/58
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.