Drilldown: Patents

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Patents > Office : BE or IT or MX or Other & Tech fields: propeller & National tech categories : USPC 244/45R or None & IPCs : IPC B64C13/00 or None & First filing: Yes & Cites these patents : Patent GB-1901-346 or None & Citations from after 1930: None

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Hiram Stevens Maxim (2) · Christian Lorenzen (2)
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Showing below up to 49 results in range #1 to #49.

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