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Patents for Willard Curtiss
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
91,269Jun. 15, 1869W. Curtiss, C. RichardsImprovement in cutter-headcutterheads
431,139Jul. 01, 1890W. CurtissMachine for dressing the teeth of gear-wheelsgear making machines
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