| All Patents in class 279/105.1 |
Patents 1 -
10
of 14
      |
| Picture | Number | Date | Patentee | Title |
| | 785,351 | Mar. 21, 1905 | W.W. Doolittle | Tool Holder |
 | 854,742 | May 28, 1907 | C.E. Hill | Adjustable extension bit holder |
| | 1,378,290 | May 17, 1921 | J.H. Smith | Adjustable Tool Holder |
| | 1,629,547 | May 24, 1927 | J.H. Smith | Tool Holder |
| | 1,845,123 | Feb. 16, 1932 | J.F. Buhr | Collet Means |
| | 1,861,246 | May 31, 1932 | J.H. Smith | Adjustable Tool Holder |
| | 1,934,910 | Nov. 14, 1933 | J.F. Buhr | Collet Means |
| | 1,973,943 | Sep. 18, 1934 | J.F. Buhr | Socket Collet Structure |
| | 1,975,215 | Oct. 02, 1934 | U.G. Thomas | Tool Holder |
| | 2,043,598 | Jun. 09, 1936 | A. Subia | Adjustable Tool Holder |
