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| Patents for Apex Machine Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,433,590 | Oct. 31, 1922 | W.M. Ziegler | Tool holder | tapping heads and chucks | |
| CA-229,123 | Feb. 27, 1923 | W.M. Ziegler | Tool holder | tapping heads and chucks | |
| 1,536,320 | May 05, 1925 | W.M. Ziegler | Automatic stud driver and releasing mechanism | stud drivers | |
| 1,589,287 | Jun. 15, 1926 | W.M. Ziegler | Chuck | drill press chucks | |