DE857142C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Method and device for producing screw threads in cylindrical holes in masonry, stone, concrete or building boards
Assignee: HANS JOACHIM WINKELMANN
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Filing: 1950-03-11
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Granted: 1952-11-27
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Expires: 1970-03-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-06 10:47
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/002; F16B13/12; F16B13/124; F16B13/126
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References Cited (Backward Citations)
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