DE474493C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Support rods and feed device for drilling machines for drilling up holes
Assignee: GEORG BUTZ
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Filing: —
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Granted: 1929-04-03
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Expires: 1946-04-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-27 18:43
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/22; E21B17/00; E21B17/20; E21B19/08; E21B19/083
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