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Patents Granted on 1831-02-18
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
6,387XFeb. 18, 1831L. DisbrowCompound furnace steam boilerstationary boilers
6,388XFeb. 18, 1831J. EastmanDouble rotary steam enginesteam engines
6,389XFeb. 18, 1831J. EastmanWater wheel with floats working upon hingeswater wheels
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