Patents Granted on 1921-03-29 |
Patents 1 -
6
of 6
|
Number | Date | Patentee | Title | Type |
1,372,738 | Mar. 29, 1921 | S.O. Bjornberg | Method and Machine for Forming Teeth in Saws | saw gummers |
1,372,816 | Mar. 29, 1921 | J.H. Holmgreen | Bending Machine and Method of Bending | sheet metal bending machines |
1,372,869 | Mar. 29, 1921 | E.R. Draver | Feed-regulator | |
1,372,913 | Mar. 29, 1921 | H.C. Smith | Stop Mechanism | metalworking machine clutches |
1,373,363 | Mar. 29, 1921 | C.L. Shepardson | Lathe and Shaper Tool Holder | lathe tool holders and tool posts |
1,373,367 | Mar. 29, 1921 | B. Summers | Centering Square | center squares |