| Patents for Harvey R. Plummer |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 2,675,604 | Apr. 20, 1954 | H.R. Plummer | Toolholder | insert tool holders |
| 3,178,739 | Apr. 20, 1965 | W.M. Ritter, H.R. Plummer | Double Float Tool Holder | milling machine tools |
| 3,295,187 | Jan. 03, 1967 | H.R. Plummer | Adjustable Block Type Cutting Tool With Clamped on Insert Blades | insert tool holders |
| 3,348,434 | Oct. 24, 1967 | H.R. Plummer | Boring Bar Assembly for Deep Hole Boring | boring bars |
| 4,054,977 | Oct. 25, 1977 | H.R. Plummer | Block Type Cutting Tool With Positive Clamp for Insert Blades | insert tool holders |
| 4,354,305 | Oct. 19, 1982 | W.E. Keller, H.R. Plummer | Contouring and Threading Attachment for Multi Function Machine Tools | metalworking machine mechanisms |
