Patent FR828285A successfully refreshed from Google Patents.
← Back to Patent Explorer
FR828285A Expired / Lapsed FR ⏱️ 0.0 years remaining

Recording head for magnetic sound recording

Assignee: AEG AG
•
Filing: 1937-10-25
•
Granted: 1938-05-13
•
Expires: 1957-10-25
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-25 13:24
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127

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.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag