Drilldown: Patents

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Patents > Tech fields: propeller & Number of claims: 10-13

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Inventors:
Charles F. Roper (2)
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None (7) · Charles F. Roper (2)
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None (12) · USPC 244/51 (2) · USPC 244/6 (2) · GB 4 aërostats (2) · GB 4 propel & steer (2)
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Showing below up to 42 results in range #1 to #42.

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