Drilldown: Patents

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Patents > Office : HU or LU or NZ or Other & Tech fields : construction or propellers or safety or None & Filing date: 1910 & IPCs : IPC B64C23/00 or None

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Patent agent:
None (464) · Victor J. Evans (5) · Munn & Co. (4) · Schwab (2) · E. G. Vrooman (2) · Marks & Clerk (2) · None (2) · H. C. Evert & Co. (2) · Noyes & Harriman (2) · A. Wunderlich & Cie, Ingénieurs-Conseils (2) · A. Boning (2)
National tech categories:
None (279) · HU V/h (27) · USPC 244/90R (20) · FR 6.4 (16) · USPC 244/233 (11) · AT 77d (8) · BE K (7) · USPC 244/45R (7) · USPC 244/48 (6) · USPC 244/80 (5) · USPC 244/51 (5) · USPC 244/87 (5) · USPC 244/22 (5) · USPC 244/60 (4) · USPC 244/91 (4) · USPC 244/66 (4) · USPC 244/139 (4)
IPCs: (Click arrow to add another value)
CPCs:
None (101) · CPC B64C23/005 (42) · CPC B64C13/00 (42) · CPC B64C2700/6295 (39) · CPC B64C17/00 (26) · CPC B64C3/385 (25) · CPC B64C39/00 (25) · CPC B64C2700/6274 (21) · CPC B64C11/006 (20) · CPC B64C39/005 (12) · CPC B64C33/02 (11) · CPC B64B1/00 (11) · CPC B64C2700/6256 (11) · CPC B64B1/40 (10) · CPC B64C17/06 (10) · CPC B64C2700/6216 (9) · CPC B64C9/00 (9) · CPC B64C11/00 (8) · CPC B64C13/24 (8)
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