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All Patents of Type: metal twisting machines
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
106,720Aug. 23, 1870N.C. PerryImprovement in Machines for Bending Screw-Eyesmetal twisting machines
185,441Dec. 19, 1876W. GibbMachine for Forming Split Keysmetal twisting machines
353,261Nov. 23, 1886F.M. LeavittAutomatic Ear Bending Machinemetal twisting machines
1,395,617Nov. 01, 1921W. StubbsApparatus for Twisting Metal Barsmetal twisting machines
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