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All Patents in class 417/555.1
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
23,649Apr. 12, 1859W. Douglas, B. DouglasPumphousehold hand pumps
909,183Jan. 12, 1909C.L. HeislerVacuum Pumpvacuum pumps
953,524Mar. 29, 1910J.B. GarberCombined air and water pump
2,368,187Jan. 30, 1945L.E. WilliamsPump
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