| Patents for Frank L. Simmons |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 1,254,736 | Jan. 29, 1918 | F.L. Simmons | Magnetic Chuck | |
| 1,330,558 | Feb. 10, 1920 | F.L. Simmons | Parallel Bars and the Like for Magnetic Chucks | magnetic chuck accessories |
| 1,336,928 | Apr. 13, 1920 | F.L. Simmons | Method and Apparatus for Alining Work on V Blocks and the Like for Magnetic Chucks | magnetic chuck accessories |
| 1,343,751 | Jun. 15, 1920 | F.L. Simmons | Adjustable V-Block and the Like for Magnetic Chucks | V blocks |
| 1,435,946 | Nov. 21, 1922 | F.L. Simmons | Magnetic Chuck | magnetic chucks |
| 1,595,691 | Aug. 10, 1926 | F.L. Simmons | Terminal Block for Magnetic Chucks and the Like | magnetic chuck accessories |
| 1,853,642 | Apr. 12, 1932 | F.L. Simmons | Surge Control for Magnetic Chucks | magnetic chuck accessories |
| 1,970,922 | Aug. 21, 1934 | F.L. Simmons | Magnetic Chuck | magnetic chucks |
