NL89471C
Expired / Lapsed
NL
⏱️ 0.0 years remaining
NL89471C - - Google Patents
Assignee: —
•
Filing: 1954-03-16
•
Granted: 1958-06-16
•
Expires: 1974-03-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
NL
Data Source
google_patents
Last Synchronized
2026-10-26 08:32
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/042; F; F16; F16B; F16B33/00; F16B33/02; F16B39/00; F16B39/22; F16B39/28; F16B39/30; F16L; F16L15/00; F16L15/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
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