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Patents > IPCs: None & Family year: 1890 - 1899 & First filing: Other

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Tech fields:
LTA (59) · propulsion (39) · None (35) · propeller (21) · frame (21) · balloon (18) · airplane (17) · instrument (13) · navigation (13) · marine (13) · kite (12) · Windmill (9) · flapping (9) · design (9) · whole (7) · hybrid (7) · marine propulsion (7)
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Patent agent:
None (133) · C. A. Snow & Co. (6) · Munn & Co. (6) · Blétry aîné (5) · Société Marillier et Robelet (5) · Armengaud jeune (3) · Richards & Co. (3) · John Wedderburn (3) · Chassevent (3) · Lombard-Bonneville (2) · None (2) · Fayollet (2) · Société Louis Gudman et Cie (2) · Dumas (2) · Société Matray frères (2) · Bert (2) · Boramé et Julien (2) · Armengaud aîné (2)
National tech categories:
None (104) · FR 6.3 (71) · DE 77 (21) · USPC 244/153R (8) · USPC 24/713.8 (5) · RU Group V (4) · GB 4 aëroplanes (4) · GB 4 without buoyant (4) · GB 4 with buoyant (3) · DE 77h (3) · HU V/h (3) · USPC 416/113 (3) · GB 4 propel & steer (3)
IPCs: (Click arrow to add another value)
CPCs:
None (152) · CPC B64B1/00 (15) · CPC B64C11/48 (13) · CPC B64C11/006 (12) · CPC A63H27/08 (8) · CPC Y10T24/3747 (7) · CPC B64C13/06 (7) · CPC Y02E10/74 (7) · CPC B64C27/54 (7) · CPC F03D3/00 (6) · CPC F05B2260/74 (6) · CPC Y02E10/72 (5) · CPC B63H5/10 (5) · CPC F03D1/025 (5) · CPC F16B2/02 (4) · CPC Y10T403/4677 (4) · CPC B64C11/04 (4)
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Citations from after 1930:
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