DE329896C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Method and device for sinking shafts, in particular through water-bearing layers
Assignee: Charbonnages De Beeringen SA D
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Filing: 1914-05-24
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Granted: 1920-12-01
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Expires: 1934-05-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-25 07:46
CPC Classifications
E; E21; E21D; E21D1/00; E21D1/10; E21D1/12
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References Cited (Backward Citations)
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