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Patents > National tech categories : DE 77h.6 or USPC 244/48

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Office:
Inventors:
None (19) · Christian Lorenzen (7) · Jakob Haw (7) · Hellmuth Hirth (4) · Paul Frederik Degn (2) · Lucien Chauvière (2) · John Holmes Wilson (2) · Joseph Hofmann (2)
Inventor country:
Applicant person:
None (37) · Jakob Haw (5) · Hans Reissner (2) · Paul Frederik Degn (2) · Lucien Chauvière (2) · Christian Lorenzen (2) · John Holmes Wilson (2) · Joseph Hofmann (2) · Hellmuth Hirth (2)
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None (50)
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Related to aircraft:
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IPCs:
None (58) · IPC B64C11/16 (9) · IPC B64C3/38 (6) · IPC B64C3/00 (6) · IPC B64C11/34 (5) · IPC B64C11/20 (4) · IPC B64C11/00 (4) · IPC B64C11/04 (4) · IPC B64C11/06 (3) · IPC B64C27/04 (3) · IPC B64C11/36 (3) · IPC B64C39/00 (2) · IPC B64C11/32 (2) · IPC B64C11/24 (2) · IPC B64C11/30 (2)
CPCs:
CPC B64C3/385 (22) · None (16) · CPC B64C11/04 (8) · CPC B64C11/20 (6) · CPC B64C11/00 (5) · CPC B64C23/005 (4) · CPC B64C2700/6295 (4) · CPC B64C11/36 (4) · CPC B64C11/006 (4) · CPC B64C2700/6281 (3) · CPC B64C13/00 (3) · CPC B64C9/00 (3) · CPC B64C27/20 (3) · CPC B64C11/24 (3) · CPC B64C11/16 (3)
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Citations from after 1930:
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