Johnstone
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There was a French inventor of the 1840s named Johnstone, and an American named Ralph Johnstone. Graville (Seine-Inférieure)
Patents whose inventor or applicant is Johnstone
- Patent FR-1849-7787 (English title: steamship propeller blade, Filing date: 1848-12-20)
- Patent FR-1849-7787.1 (English title: steamship propeller blade, Filing date: 1849-12-22)
Publications by or about Johnstone
- Publication B2p0700e14, 1911, Johnstone excites Detroit by daring work (Simple title: Johnstone excites Detroit by daring work, Journal: Aero)
- Johnstone, 1911, Johnstone sets new American endurance mark (Simple title: Johnstone sets new American endurance mark, Journal: Aero)
References
http://bases-brevets19e.inpi.fr/index.asp?page=rechercheAvancee http://bases-brevets19e.inpi.fr/Thot/FrmLotDocFrame.asp?idlot=332403&idfic=0124019&resX=1440&resY=900&init=1&visionneuseHTML5=0