| Patents for Theodore  Trecker | 
| Patents 1 - 
					11
					of 11 
       | 
| Number | Date | Patentee | Title | Type | 
| 834,063 | Oct. 23, 1906 | E.J. Kearney, T. Trecker | Means for lubricating machine-tools | milling machines | 
| 995,256 | Jun. 13, 1911 | E.J. Kearney, T. Trecker | Milling-machine | milling machines | 
| 995,683 | Jun. 20, 1911 | E.J. Kearney, T. Trecker | Attachment for milling-machines | milling machine accessories | 
| 1,019,798 | Mar. 12, 1912 | T. Trecker, E.J. Kearney | Speed-changing gearing | milling machines | 
| 1,053,295 | Feb. 18, 1913 | E.J. Kearney, T. Trecker | Arbor-Holding Attachment | milling machine accessories | 
| 1,053,296 | Feb. 18, 1913 | E.J. Kearney, T. Trecker | Milling-machine | milling machines | 
| 1,065,689 | Jun. 24, 1913 | T. Trecker, E.J. Kearney | Means for lubricating machine-tools | metalworking machine lubrication | 
| 1,658,267 | Feb. 07, 1928 | T. Trecker | Attachment for MachineTools Having a Plurality of Overarms | milling machines | 
| 1,886,851 | Nov. 08, 1932 | T. Trecker | Telescopic Screw | milling machines | 
| 2,434,750 | Jan. 20, 1948 | F.D. Boehmer, K.A. Riedel, O.W. Barker, J.B. Armitage, T. Trecker | Machine Tool | milling machines | 
| 2,434,751 | Jan. 20, 1948 | J.B. Armitage, T. Trecker | Machine Tool | milling machines |