Library and Archives Canada
Symbol of the Government of Canada

Institutional links

Canadian Patents, 1869-1919

Item Display

Source Search
IMPROVEMENTS IN FILTERING MACHINES. page 1
DECASTRO, J.W.: MONTREAL, Quebec, Canada Filing year:1869-01-01
Year granted:1869-08-25
Results
Page Navigation (5 pages): 1  >  >>
IMPROVEMENTS IN FILTERING MACHINES, p. 1
Results
Page Navigation: 1  >  >>

Visit the virtual exhibition Made in Canada - Patents of Invention and the Story of Canadian Innovation