Patent US3478874A successfully refreshed from Google Patents.
Patent DE7386C successfully refreshed from Google Patents.
DE7386C
Active / In Force
DE
Apparatus for drilling curved holes
Assignee: A. EHRICH, Rittmeister a. D., in Berlin W., Verl. Genthinerstr. si
•
Filing: —
•
Granted: —
•
Expires: —
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-31 07:58
CPC Classifications
B; B23; B23B; B23B51/00; B23B5/00; B23B5/36; B23B5/365
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.