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Patents > Tech fields : paddle-wheel or None & First filing: No

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Supplementary to patent:
None (754) · Patent BE-1909-219377 (3) · Patent US-1911-1032812 (3) · Patent US-1911-1028409 (3) · Patent BE-1912-02-07-Gramaticesco (3) · Patent BE-1912-08-13-Panian (3) · Patent DE-1907-196255 (3) · Patent BE-1910-12-28-Muehter (3) · Patent US-1916-1215295 (3)
Related to aircraft:
Patent agent:
None (774) · Brandon freres (6) · Boult, Wade & Tennant (6) · Marks & Clerk (6) · G. Petiau (5) · J. S. Withers & Spooner (4) · E. Blétry (4) · Herbert Haddan & Co. (4) · Rigot et Prévost (4) · Boramé et Julien (4) · Dupont et Elluin (3) · J. Fayollet (3) · Ch. Neulat (3) · Charles Assi (3) · L. Chassevent (3) · None (3) · Weismann et Marx (3)
National tech categories:
None (786) · FR 6.4 (93) · FR 6.3 (13) · DE 77h.5 (5) · DE 77h.7 (4) · AT 77d (4) · DE 77 (3) · FR 5.3 (2) · FR 2 (2) · HU V/h (2) · FR 5 (2) · DE 77h.9 (2) · FR 5.8 (2) · FR 10.1 (2) · USPC 244/90R (2) · USPC 244/104R (2)
IPCs:
None (787) · IPC B64C39/00 (30) · IPC B64C1/00 (17) · IPC B64C17/00 (16) · IPC B64C23/00 (14) · IPC B64C3/38 (14) · IPC B64C3/00 (11) · IPC B64C33/02 (8) · IPC B64C5/04 (6) · IPC B64C35/00 (6) · IPC B64C3/54 (5) · IPC B64C13/00 (5) · IPC B64C27/04 (4) · IPC B64C17/06 (3) · IPC B64C11/00 (3) · IPC B64C27/00 (3) · IPC B64C33/00 (3) · IPC B62C5/04 (3)
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