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Patents for Judson H. Mansfield
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,646,955Oct. 25, 1927J.H. Mansfield, D.M. EdwardsMachine for perforating wood for preservative treatmentspecialty woodworking machines
1,672,652Jun. 05, 1928J.H. MansfieldTie-adzing machinerailroad machines
1,711,275Apr. 30, 1929J.H. Mansfield, C.A. WikenDouble-end tenonertenoning machines
2,664,126Dec. 29, 1953E.C. Swanson, J.H. MansfieldRatchet spiral screw driverspiral screwdrivers
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