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Patents > Tech fields : propeller or tail fin & First filing: Yes

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Supplementary to patent:
None (427) · Patent DE-1893-73799 (2) · Patent GB-1909-12556 (2)
Related to aircraft:
Patent agent:
None (204) · Munn & Co. (19) · Victor J. Evans (11) · None (8) · Watson E. Coleman (6) · R. S. & A. B. Lacey (5) · Michael J. Stark & Sons (4) · H. C. Everett Co. (4) · Marks & Clerk (3) · Joshua R. H. Potts (3) · John P. Tarbox (3) · Knight Bros. (3) · C. A. Snow & Co. (3) · Armengaud jeune (3)
National tech categories:
None (122) · DE 77h.6 (23) · FR 6.4 (21) · USPC 244/6 (12) · USPC 244/30 (11) · USPC 244/73R (9) · USPC 244/66 (9) · USPC 244/51 (9) · USPC 244/22 (8) · USPC 244/25 (7) · USPC 244/26 (7) · DE 77h.5 (7) · DE 77 (7) · USPC 244/72 (7) · USPC 244/139 (6) · USPC 244/20 (6) · USPC 244/87 (6) · USPC 244/60 (6) · USPC 244/80 (6) · USPC 244/13 (6)
IPCs:
None (313) · IPC B64B1/00 (18) · IPC B64C39/00 (11) · IPC B64C11/04 (10) · IPC B64C11/16 (9) · IPC B64C11/00 (9) · IPC B64C23/00 (8) · IPC B64C11/20 (7) · IPC B64C33/00 (5) · IPC B64C27/00 (4) · IPC B64C17/00 (4) · IPC B64C1/00 (3) · IPC B64C11/34 (3) · IPC B64C3/14 (3) · IPC B64C11/30 (3) · IPC B64C33/02 (3) · IPC B64C9/00 (3) · IPC B64C3/56 (3)
CPCs:
None (60) · CPC B64B1/00 (47) · CPC B64C23/005 (33) · CPC B64C11/006 (23) · CPC B64C33/02 (16) · CPC B64C39/005 (15) · CPC B64C11/48 (15) · CPC B64C2700/6295 (13) · CPC B64C9/00 (11) · CPC B64C11/04 (11) · CPC B64C39/08 (10) · CPC B64C17/00 (10) · CPC B64C27/82 (10) · CPC B64C11/065 (8) · CPC B63H1/12 (8)
First filing: (Click arrow to add another value)
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