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Patents > Inventor country : BE or CH or DE or HU & Applicant type : Hermann Burkardt or INDIV & CPCs : CPC B64B1/40 or CPC B64C23/005 or CPC B64C2700/6212 or None

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Inventor country: (Click arrow to add another value)
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Applicant is inventor:
Full specification filed date:
Application number:
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Supplementary to patent:
None (670) · Patent BE-1907-199348 (18) · Patent HU-1901-24148 (10) · Patent DE-1895-98580 (8) · Patent CH-1899-18666 (6) · Patent FR-1909-410140 (5) · Patent FR-1908-396249 (5) · Patent DE-1907-214228 (4) · Patent DE-1908-221549 (4) · Patent DE-1909-220044 (4) · Patent DE-1909-232158 (4) · Patent CH-1910-52044 (4) · Patent DE-1910-06-18 Carl Hanschke (4)
Related to aircraft:
Patent agent:
None (731) · E. Blum & Co. (13) · A. Wunderlich & Cie, Ingénieurs-Conseils (12) · W. P. Thompson & Co. (7) · Matray frères et Cie (7) · Marks & Clerk (7) · A. Ritter (6) · Boult, Wade & Tennant (6) · E. Blètry (5) · Herbert Haddan & Co. (5) · Wilhelm Reinhard (4) · Schwab (4) · Ferdinand Klostermann (4) · J. Gevers (4) · Haseltine, Lake & Co. (4) · H. Kirchhofer (4) · Raclot (4)
National tech categories:
HU V/h (215) · None (199) · BE K (112) · AT 77d (81) · DE 77 (48) · FR 6.4 (38) · DE 77h (31) · CH 129b (23) · FR 6.3 (15) · DK 77 (15) · DE 77h.5 (13) · CH 115 (13) · RU Group V (11) · DE 77h.6 (10) · GB 4 propel & steer (10) · IT 8 (9) · DE 77h.15 (8) · CH 129a (8) · DE 77h.4 (6)
IPCs:
None (868) · IPC B64C23/00 (25) · IPC B64C17/00 (21) · IPC B64B1/40 (18) · IPC B64C5/04 (5) · IPC B64B1/00 (4) · IPC B64C33/02 (3) · IPC B64C11/16 (3) · IPC B64C9/00 (2) · IPC B64C23/02 (2) · IPC B64C3/38 (2) · IPC B64B1/58 (2) · IPC F24F7/02 (2) · IPC B64C39/00 (2) · IPC B64B1/50 (2)
CPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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