Patent FI20904A successfully refreshed from Google Patents.
FI20904A
Expired / Lapsed
FI
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Combined propeller and rudder unit
Assignee: Virolainen Aarne
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Filing: 1939-10-03
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Granted: —
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Expires: 1959-10-03
Abstract
No abstract record available.
Inventors
- 👤 Virolainen Aarne
Bibliographic Details
Application Number
—
Jurisdiction
FI
Data Source
google_patents
Last Synchronized
2026-10-30 13:15
CPC Classifications
—
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