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Patents > Office : DE or Other & National tech categories : USPC 244/30 or None & IPCs : IPC B64B1/58 or IPC B64C3/54 or IPC B64C33/00

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Office: (Click arrow to add another value)
Inventors:
None (6) · Robert Welford (2) · Johann Schütte (2) · Richard A. Engler (2) · Franz Xaver Wels (2)
Inventor country:
Applicant person:
None (8) · Franz Xaver Wels (2) · Robert Welford (2) · Richard A. Engler (2) · Johann Schütte (2) · William Phillips Thompson (2)
Applicant is inventor:
Tech fields:
LTA (27) · None (16) · design (13) · stability (10) · frame (10) · propulsion (9) · wings (9) · airplane (8) · envelope (8) · control (7) · airship (7) · fabric (7) · flapping (7) · navigation (7) · construction (7) · ornithopter (6) · dirigible (5) · balloon (5) · rudder (5) · Aerodynamics (5)
Full specification filed date:
Application number:
None (4)
Granted:
Publication date:
Related to aircraft:
Patent agent:
None (21) · Marks & Clerk (7) · None (4) · Haseltine, Lake & Co. (3) · W. P. Thompson & Co. (3) · Herbert Haddan & Co. (2) · Abel & Imray (2) · H. G. Law (2) · Edwards & Co. (2) · Johnsons (2) · Wheatley & Mackenzie (2) · Page & Rowlingson (2)
National tech categories: (Click arrow to add another value)
IPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
Number of diagram pages:

Showing below up to 82 results in range #1 to #82.

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