Drilldown: Patents

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Patents > Office : BE or JP or Other & Applicant type : agent or Other or None & Patent agent: None & CPCs : CPC B22D33/00 or CPC B64C13/00 or CPC B64C2700/6218

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Tech fields:
None (209) · airplane (71) · stability (65) · control (48) · automatic stability (35) · navigation (28) · design (28) · rudder (21) · frame (20) · aerodynamics (16) · wings (14) · steering (11) · propellers (8) · Subsystem (7) · construction (7) · lift (6) · piloting (5) · wheels (5) · aileron (5)
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National tech categories:
None (150) · FR 6.4 (35) · USPC 244/90R (25) · DE 77h.5 (24) · USPC 244/233 (17) · USPC 244/78.1 (12) · USPC 244/87 (9) · USPC 244/225 (7) · USPC 244/88 (6) · USPC 244/234 (6) · USPC 244/231 (6) · USPC 244/237 (4) · USPC 244/100R (4) · USPC 244/82 (4) · USPC 244/119 (4) · USPC 244/80 (4) · USPC 244/232 (4) · USPC 244/104R (3) · DE 62b.15 (3)
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Citations from after 1930:

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