| Patents for Henry C. Pierle |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 1,617,606 | Feb. 15, 1927 | H.C. Pierle | Machine Tool | metalworking machines |
| 2,042,123 | May 26, 1936 | H.C. Pierle | Loading and Unloadng of Work in Machine Tools | machine mechanisms |
| 2,080,228 | May 11, 1937 | H.C. Pierle | Work Rotating Structure foe Machine Tools | machine mechanisms |
| 2,089,421 | Aug. 10, 1937 | H.C. Pierle | Tool Holder for Lathes | machine mechanisms |
| 2,173,633 | Sep. 19, 1939 | H.C. Pierle | Tool Holder for Lathes | machine mechanisms |
| 2,198,090 | Apr. 23, 1940 | W.F. Groene, H.C. Pierle | Taper Attachment for Lathes | metal lathe accessories |
| 2,392,186 | Jan. 01, 1946 | H.C. Pierle | Work Handling Mechanism | machine mechanisms |
