Drilldown: Patents

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Patents > Related to aircraft: Yes & National tech categories : AT 77d or USPC 244/153R

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Office:
Inventors:
None (33) · Johannes Schilling (2) · Franz Xaver Wels (2)
Inventor country:
Applicant is inventor:
Tech fields:
frame (20) · airplane (19) · LTA (14) · None (10) · construction (10) · airship (9) · propellers (9) · kite (8) · propulsion (7) · Design (7) · navigation (6) · stability (6) · balloon (5) · Control (5) · gas (4) · hybrid (4) · wheels (4) · automatic stability (4)
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Related to aircraft: (Click arrow to add another value)
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National tech categories: (Click arrow to add another value)
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Citations from after 1930:
Number of text pages:
Number of diagram pages:

Showing below up to 74 results in range #1 to #74.

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