Drilldown: Patents

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Patents > Year filed: 1900 - 1909 & Office : CA or DE & National tech categories : USPC 244/30 or None

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Inventors:
None (3) · Albert Graff (2) · Richard Wilcke (2)
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Tech fields:
None (9) · propulsion (5) · design (4) · Propellers (4) · Wings (4) · navigation (4) · Stability (4) · Frame (3) · flapping (3) · propeller (3) · construction (3) · LTA (3) · Whole (3) · airplane (3) · kite (2) · Lift (2) · heavier-than-air (2) · balloon (2)
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Showing below up to 36 results in range #1 to #36.

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