All Patents in class 74/421R |
Patents 31 -
45
of 47
|
Number | Date | Patentee | Title | Type |
1,249,905 | Dec. 11, 1917 | C.F. Davis | Back Gear for Lathe Heads and the Like | metalworking machine gearing |
1,445,294 | Feb. 13, 1923 | H.P. Camp | Electric hand drill | handheld power drills |
1,464,595 | Aug. 14, 1923 | E. Bockshe | Grinder | bench or pedestal grinders |
1,532,798 | Apr. 07, 1925 | H.R. Blakeslee, C. Bouillon | Lathe Attachment | metal lathe accessories and attachments |
1,679,884 | Aug. 07, 1928 | H.T. Thomas | Attachment for drills | handheld power tool accessories |
1,844,122 | Feb. 09, 1932 | L. Deutsch, G.W. Hoddy | Motor and drive connection | |
2,428,049 | Sep. 30, 1947 | J. Tate | Drill press | drill presses |
2,716,350 | Aug. 30, 1955 | R.D. Phares | Slow speed converter motor drive | metalworking speed changing mechanisms |
2,742,797 | Apr. 24, 1956 | J.A. Perham | Multi-spindle portable power-operated tool | |
2,878,909 | Mar. 24, 1959 | F.E. Munschauer, Jr. | Power press drive mechanism | punch presses |
2,881,880 | Apr. 14, 1959 | F.E. Munschauer, Jr. | Power press drive mechanism | punch presses |
2,946,232 | Jul. 26, 1960 | G.H. Jones | Gear Drive | metalworking machine gearing |
2,946,234 | Jul. 26, 1960 | R.H. Jahnke | Press brake | sheet metal brakes |
2,991,595 | Jul. 11, 1961 | W.A. Addis | Power operating belt sanding machine | handheld power sanders |
3,009,366 | Nov. 21, 1961 | C.T. Roberts | Gearhead | industrial machine gearing |