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Patents > Office : CU or DE or UN & National tech categories : DE 77h.6 or None

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Office: (Click arrow to add another value)
Inventor country:
Applicant person:
None (256) · HELIX PROPELLER GES M (7) · Jakob Haw (5) · Hans Reissner (4) · Paul Frederik Degn (3) · KAMERA KINOWERKE DRESDEN VEB (3) · Rudolf Wagner (3)
Applicant is inventor:
Tech fields:
None (277) · propeller (57) · propulsion (28) · LTA (21) · airplane (18) · Propellers (16) · balloon (9) · frame (9) · navigation (8) · subsystem (8) · stability (7) · helicopter (7) · design (6) · control (6) · construction (6) · metal (6) · marine (6) · airship (5) · wings (5)
Full specification filed date:
Application number:
None (300)
Granted:
Related to aircraft:
National tech categories: (Click arrow to add another value)
IPCs:
None (354) · IPC B64C11/16 (8) · IPC B64C11/00 (6) · IPC B64C33/02 (4) · IPC B64C11/34 (4) · IPC B64C11/20 (4) · IPC B64C27/04 (3) · IPC B64C17/00 (3) · IPC B64C1/00 (3) · IPC B64C11/32 (3) · IPC B64C39/00 (3) · IPC B64C11/06 (2) · IPC B64C11/24 (2) · IPC B64B1/64 (2) · IPC B64B1/58 (2) · IPC B64C27/08 (2)
CPCs:
None (217) · CPC B64B1/00 (13) · CPC B64B1/58 (11) · CPC B64C11/006 (11) · CPC B64C3/00 (9) · CPC B64C2700/6281 (9) · CPC B64C11/04 (9) · CPC B64C11/00 (8) · CPC B64C33/02 (6) · CPC B64C11/20 (6) · CPC B64C27/00 (6) · CPC B64C11/36 (5) · CPC B64C2700/6233 (5) · CPC B64B1/64 (4) · CPC B64C17/00 (4) · CPC B64C9/00 (4) · CPC B64C2700/6235 (4) · CPC B64C35/00 (4) · CPC B64C2700/6295 (4) · CPC B64C29/0025 (4)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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