All Patents of Type: hand drills |
Patents 1 -
15
of 96
|
Number | Date | Patentee | Title | Type |
8,174X | Apr. 29, 1834 | C. Babbitt | Stock screw drill | hand drills |
5,894 | Oct. 31, 1848 | J. Johnson | Hand-drill | hand drills |
11,123 | Jun. 20, 1854 | C.S. Harris | Improvement in producing continuous circular from reciprocating rectilinear motion | hand drills |
11,787 | Oct. 10, 1854 | S. Ingersoll | Pawl Drill | hand drills |
24,894 | Jul. 26, 1859 | G.I. Washburn | Boring-tool | hand drills |
36,135 | Aug. 12, 1862 | E. Beeman | Drill with multiple pulleys | hand drills |
38,486 | May 12, 1863 | S. Ingersoll | Improved Friction Clutch | hand drills |
39,151 | Jul. 07, 1863 | S.U. King | Head bearing surface on bit stock | hand drills |
52,106 | Jan. 16, 1866 | N.W. Woodbury | Improved Wrench and Drill | hand drills |
68,071 | Aug. 27, 1867 | D.F. Hartford | Improved Bow-Drill Stock | hand drills |
68,787 | Sep. 10, 1867 | C.T. Poulton | Improved Brace for Boring, Wrenching, etc. | wrench jaw components |
72,632 | Dec. 24, 1867 | D.F. Hartford | Improvement in Stringing Bow-Drill Stocks | hand drills |
76,956 | Apr. 21, 1868 | J. Swan | Improvement in auger-handles | hand drills |
78,183 | May 26, 1868 | W.C. Burch | Improved hand-drill | hand drills |
79,115 | Jun. 23, 1868 | M. Haingue | Drill-stock (engineer's) | hand drills |