DE2321962C2
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for expanding boreholes
Assignee: Brueckner Grundbau 4300 Essen GmbH
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Filing: 1973-05-02
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Granted: 1974-12-12
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Expires: 1993-05-02
Abstract
No abstract record available.
Inventors
- 👤 Klaus Dipl.-Ing. Esters
- 👤 Fritz Dipl.-Ing. Klein
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-07 23:33
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/28; E21B10/00; E21B10/64; E21B10/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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