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Patents for Curtis Manufacturing Co.
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,396,391Nov. 08, 1921C.W. Frees, F. AckermanPower-operated compressorair compressors
1,708,158Apr. 09, 1929E.H. StedmanValve structure for compressorsair compressors
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