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All Patents in class 451/37
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
744,340Nov. 17, 1903J.N. HealdGrinding Attachment for Lathesmetal lathe accessories and attachments
1,989,792Feb. 05, 1935J.C. DraderAutomatic Machine Tooltool grinders
2,142,285Jan. 03, 1939H. PelphreyHob and Method of Manufacturegear cutting tools
2,328,869Sep. 07, 1943L.A. WilkieSaw band and method of lubricating the same
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