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All Patents in class 73/297
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,498,861Jun. 24, 1924W.O. AsheWater Columnboiler water gauges
1,502,650Jul. 29, 1924W.O. AsheGauge Cockboiler water gauges
1,689,191Oct. 30, 1928W.O. AsheWater Columnboiler water gauges
1,948,725Feb. 27, 1934J.D. McClintockSafey Connectionlow water alarms
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