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Canadian Patents, 1869-1919

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IMPROVEMENTS IN MACHINES BY WHICH FISH ARE ENABLED TO SURMOUNT AND PASS DAMS, CASCADES AND OTHER OBSTRUCTIONS IN WATER. page 1
KING, J.W.: SHUBENACADIE, Newfoundland, Canada Filing year:1869-01-01
Year granted:1869-11-18
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IMPROVEMENTS IN MACHINES BY WHICH FISH ARE ENABLED TO SURMOUNT AND PASS DAMS, CASCADES AND OTHER OBSTRUCTIONS IN WATER, p. 1
 
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