Drilldown: Patents

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Patents > Office : DE or ES or MX & Tech fields : Safety or Wings or balloon or construction or propellers & Granted : Other or None & Number of claims: None

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None (18) · Leonardo Torres Quevedo (6) · George Raymond Lawrence (4) · Comte Antoine Apraxine (3) · Enrique Sanchis (2) · Richard Wilcke (2) · Henry Boinet (2) · Albert Graff (2)
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None (56) · George Raymond Lawrence (4) · Leonardo Torres Quevedo (3) · Enrique Sanchis (2) · Comte Antoine Apraxine (2)
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Showing below up to 122 results in range #1 to #122.

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