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All Patents in class 209/219
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
6,121Feb. 20, 1849R. CookImprovement in Electro-Magnetic Ore-Separatorsore processing apparatus
567,381Sep. 08, 1896R. EickemeyerMagnetic separatorseparators
567,382Sep. 08, 1896R. EickemeyerMagnetic separatorseparators
2,221,918Nov. 19, 1940E.A. Hall, K.R. BohnValve Grinding Machinevalve grinding tools
2,466,839Apr. 12, 1949H.J. CaldwellMagnetic separator
2,717,080Sep. 06, 1955A. AndersonMagnetic separatorseparators
4,199,455Apr. 22, 1980M.R. EstabrookCombined magnetic and cyclonic separating apparatus
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