| All Patents in class 403/321 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 735,618 | Aug. 04, 1903 | E. Tannewitz | Furniture-coupling | furniture hardware |
| 831,745 | Sep. 25, 1906 | L.E. Rice | Locking device | |
| 1,049,298 | Dec. 31, 1912 | A.A. Harvie | Knockdown Carpenter's Square | carpenter squares |
| 1,065,242 | Jun. 17, 1913 | F.B. Hardsocg | Knockdown Carpenter's Square | carpenter squares |
| 1,253,511 | Jan. 15, 1918 | J.C. Moler | Coal Drill Socket Retaining Apparatus | |
| 1,896,645 | Feb. 07, 1933 | E.M. Pfauser | Coupling For Socket Wrenches | socket wrenches |
| RE19,093 | Feb. 27, 1934 | E.M. Pfauser | Coupling For Socket Wrenches | socket wrenches |
| 2,931,659 | Apr. 05, 1960 | R.E. Novkov | Quick Change Tool Holder | milling machine tools |
