| All Patents in class 464/53 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 642,794 | Feb. 06, 1900 | C.F. Hotchkiss | Flexible Shaft | |
| 1,228,439 | Jun. 05, 1917 | C.F. Hotchkiss | Flexible Shaft | flexible shafts |
| 1,260,080 | Mar. 19, 1918 | J.W. Singer | Cylinder Grinder | metal lathe accessories and attachments |
| 1,575,307 | Mar. 02, 1926 | A.B. Bachmann | Flexible-shaft bench grinder | flexible shafts |
| 1,918,952 | Jul. 18, 1933 | W. Krause, A.B. Bachmann | Flexible Shaft Bench Grinder | grinders |
| 1,943,980 | Jan. 16, 1934 | A.W. Mall | Spindle connecter | |
| 2,243,960 | Jun. 03, 1941 | C.F. Hotchkiss, Jr. | Flexible Drive Shaft Coupling | flexible shafts |
| 2,270,309 | Jan. 20, 1942 | O.A. Kehle | Rubbing machine | handheld power sanders |
| 2,525,922 | Oct. 17, 1950 | S. Mandl | Rotary-Reciprocating Motion Converter | |
| 2,586,359 | Feb. 19, 1952 | A.W. Mall | Flexible shaft coupling | |
| 2,586,360 | Feb. 19, 1952 | A.W. Mall | Flexible shaft coupling | |
