Hjorth, Herman, 1883-1951. Hjorth, Herman, 1883-1951. Operation of modern woodworking machines / [by] Herman Hjorth [and] William F. Holtrop. - Milwaukee : Bruce Pub. Co., [1958] LCCN: 58012229 Subjects--Topical Terms: Woodwork.Woodworking machinery. LC Class. No.: TT180 / .H58 Dewey Class. No.: 684