Patent DE657045C successfully refreshed from Google Patents.
DE657045C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Steep screwdriver with a motor-driven rotor that can be brought up to lift speed by a pinion that can be switched on and off
Assignee: KAY GYROPLANES Ltd
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Filing: 1935-07-27
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Granted: 1938-02-25
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Expires: 1955-07-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-06 19:51
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/32
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