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Patents for Ira J. Clark
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,871,498Aug. 16, 1932I.J. ClarkValve Liftervalve spring tools
RE19,414Jan. 08, 1935I.J. ClarkValve Spring Compressorvalve spring tools
2,091,500Aug. 31, 1937I.J. ClarkValve Toolvalve spring tools
2,119,128May 31, 1938I.J. ClarkValve Spring Compressorvalve spring tools
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