Drilldown: Patents

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Patents > Filing date: 1860 - 1869 & Patent agent : E. Blétry or None

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Office:
Inventors:
de Louvrié (3) · William H. Holland (3) · Richard Boyman-Boyman (3) · Halvor Halvorson (2) · Louis-Edouard Gourdan-Fromentel (2) · Nicholas de Telescheff (2) · Henry William Grylls (2) · Jose Pesaña y Piñol (2) · Matthew Piers Watt Boulton (2) · John Kinnersley Smythies (2) · Michniewicz (2) · Victor Coine (2) · Baron de Rovérié de Cabrières (2) · Auguste Hitschler (2) · André Crestadoro (2) · J. Holt (2) · J. W. Brooks (2) · H. Neville (2)
Inventor country:
Applicant person:
None (72) · William H. Holland (3) · Michael Henry (2) · Baron de Rovérié de Cabrières‎ (2) · Jose Pesaña y Piñol (2) · Richard Boyman-Boyman (2) · Charles Spear (2) · Louis-Edouard Gourdan-Fromentel (2)
Applicant firm:
Applicant type:
Applicant is inventor:
Tech fields:
propulsion (27) · navigation (21) · balloon (21) · LTA (18) · marine (10) · None (9) · military (9) · projectile (9) · frame (6) · cargo (5) · Aerial Navigation (5) · propeller (5) · gas (5) · Aerostat (4) · ornithopter (4) · paddle wheel (4) · car (4)
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National tech categories:
FR 5 (29) · None (28) · GB 4 (10) · USPC 244/3.23 (8) · FR 2 (6) · USPC 416/194 (5) · FR 6 (5) · FR 20 (3) · USPC 416/227R (2) · USPC 244/153R (2) · FR 3 (2) · FR 15 (2)
First filing:
Citations from after 1930:
Number of text pages:
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