| All Patents in class 409/168 | 
| Patents 1 - 
					15
					of 18 
       | 
| Number | Date | Patentee | Title | Type | 
| 292,927 | Feb. 05, 1884 | C.E. Lipe | Index-head for milling-machines | milling machine accessories | 
| 478,244 | Jul. 05, 1892 | F.D. Skeel | Milling attachment for lathes | metal lathe accessories and attachments | 
| 519,752 | May 15, 1894 | C.S. Yarnell | Frame for supporting patterns and material for carving-machines | carving machines | 
| 895,093 | Aug. 04, 1908 | W.B. Knight | Work-support for Milling and Drilling Machines | milling machine accessories | 
| 1,155,987 | Oct. 05, 1915 | J.R. Beckett | Universal Angle Plate | angle bars and angle plates | 
| 1,316,221 | Sep. 16, 1919 | C.M. Conradson | Metal Working Machine | milling machines | 
| 1,338,095 | Apr. 27, 1920 | R. Reid, A.S. Reid | Angle Plate | angle bars and angle plates | 
| 1,363,222 | Dec. 28, 1920 | J.R. Beckett | Angle Plate | angle bars and angle plates | 
| 1,409,343 | Mar. 14, 1922 | S. Karasick | Sine Angle Plate | sine bars | 
| 1,414,970 | May 02, 1922 | A.W. Nelson | Adjustable angle plate | angle bars and angle plates | 
| 1,737,002 | Nov. 26, 1929 | C.B. De Vlieg | Rotatable Work Table | milling machine accessories | 
| 1,750,746 | Mar. 18, 1930 | H. Deutsch | Machine Tool Work Holder | metalworking machine tool holders | 
| 1,763,711 | Jun. 17, 1930 | E.J. Kearney | Machine-Tool Attachment | indexers and dividers | 
| 1,843,794 | Feb. 02, 1932 | R.R. Weddell | Adjustable Work Holder | jigs and fixtures | 
| 3,218,933 | Nov. 23, 1965 | E.F. Drechsler, R.K. Sedgwick | Machine Tool | milling machines |