| All Patents in class 82/170 | 
| Patents 1 - 
					15
					of 27 
       | 
| Number | Date | Patentee | Title | Type | 
| 39,608 | Aug. 18, 1863 | F.B. Williams | Device for Centering Shafting | metal lathe accessories and attachments | 
| 60,169 | Dec. 04, 1866 | C.O. Gardiner | Centering and Squaring Device | metal lathe accessories and attachments | 
| 69,577 | Oct. 08, 1867 | J. O'Connor | Lathe Chuck | metal lathe chucks | 
| 142,014 | Aug. 19, 1873 | H. Gray | Centering Devices for Lathes | metal lathe accessories and attachments | 
| 173,027 | Feb. 01, 1876 | J.E. Leland | Centering Device for Gage Lathes | metal lathe accessories and attachments | 
| 189,953 | Apr. 24, 1877 | C.A. Niebell | Combined Center and Carrier for Lathes | metal lathe chucks | 
| 198,327 | Dec. 18, 1877 | I. Winn | Debarking machine | debarking machines | 
| 249,143 | Nov. 01, 1881 | H. Cottrell | Expanding Mandrel | mandrels and arbors | 
| 271,680 | Feb. 06, 1883 | W.P. Barclay | Car Wheel Borer and Truing Machine | wheel truing devices | 
| 272,704 | Feb. 20, 1883 | J.N. Kaufholz | Machine for Centering Shafts Axles, &c. | cutting-off and centering machines | 
| 272,995 | Feb. 27, 1883 | J.F. Whitney | Centering Device | machinist vises | 
| 329,325 | Oct. 27, 1885 | J.W. Maloy | Centering Device for Stone Cutting Machines | stoneworking | 
| 484,813 | Oct. 25, 1892 | R.C. Nugent | Inside Calipers | calipers | 
| 508,196 | Nov. 07, 1893 | T.A. Willson, H. Bilgram | Machine for grinding the edges of spectacle or eyeglass lenses |  | 
| 525,810 | Sep. 11, 1894 | A.H. Fleming | Watchmaker's Tool | watchmakers lathes |