Drilldown: Patents

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Patents > Office : HU or JP or MX or US & Tech fields : control or propeller & National tech categories : USPC 244/6 or None & Citations from after 1930: None

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Office: (Click arrow to add another value)
Inventors:
None (3) · Albert Hugo Friedel (2) · Henry Kleckler (2)
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Related to aircraft:
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CPCs:
CPC B64C23/005 (10) · CPC B64C11/006 (9) · None (5) · CPC B63H1/04 (4) · CPC B64C11/36 (4) · CPC B64C11/48 (4) · CPC B63H1/12 (4) · CPC B64C11/065 (3) · CPC B64C27/12 (2)
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Cites these patents:
Citations from after 1930:
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