Drilldown: Patents

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Patents > Applicant firm: None & Applicant is inventor: None

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Office:
Applicant person:
None (211) · Everard Richard Calthrop‎‎ (3) · Charles Cadet (2) · Horace Leonard Short (2)
Applicant firm: (Click arrow to add another value)
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Applicant is inventor: (Click arrow to add another value)
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Supplementary to patent:
None (233) · Patent CA-1910-131159 (2) · Patent DE-1917-300978 (2) · Patent HU-1917-77280 (2)
Related to aircraft:
Patent agent:
None (232) · Armand Ricordeau (4) · Henry Hughes (3) · Blétry (2) · Hans Heimann (2) · Jensen & Son (2) · Jules Mathieu (2) · 0 (2) · Marks & Clerk (2) · Armengaud jeune (2)
National tech categories:
None (82) · IT 8 (46) · FR 5 (34) · GB 4 with buoyant (15) · GB 4 propel & steer (11) · FR 6.4 (8) · FR 6 (6) · FR 6.3 (5) · DE 77h.4 (4) · AT 77d (4) · HU V/h (4) · GB 4 aërostats (4) · GB 4 aëroplanes (4) · FR 3 (4) · GB 4 without buoyant (4)
CPCs:
None (232) · CPC B64B1/00 (5) · CPC B64C17/00 (4) · CPC A63H27/08 (3) · CPC B64B1/58 (2) · CPC B64C33/02 (2) · CPC B64D27/04 (2) · CPC B64B1/62 (2) · CPC B64C11/006 (2) · CPC B64B1/40 (2)
First filing:
Citations from after 1930:
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