Drilldown: Patents

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Patents > Tech fields : rudder or None & Number of text pages: 7

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Inventors:
William Whitney Christmas (2)
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None (5)
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CPCs:
CPC B64C17/00 (5) · CPC B64C3/385 (4) · None (4) · CPC B64C13/00 (2) · CPC B64C3/14 (2)
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Citations from after 1930:
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