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Canadian Patents, 1869-1919

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IMPROVEMENTS ON LUBRICATORS FOR STEAM ENGINES. page 1
MCCOY, ELIJAH: YPSILANTI, Michigan, United States
ROBY, GEORGE G.: DETROIT, Michigan, United States
WIARD, CHARLES G.: DETROIT, Michigan, United States
Filing year:1874-01-01
Year granted:1874-05-29
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