| Patents Granted on 1929-04-__ |
Patents 1 -
15
of 49
      |
| Number | Date | Patentee | Title | Type |
| 1,707,476 | Apr. 02, 1929 | G. Langen, R. Hohnhorst | Click Box | metalworking machine mechanisms |
| 1,707,478 | Apr. 02, 1929 | R.E. Hyde | Grooving Tool | grooving tools |
| 1,707,499 | Apr. 02, 1929 | M.C. Talcott | Drop Hammer | drop hammers |
| 1,707,558 | Apr. 02, 1929 | G.H. Langen, C.E. Linden | Clapper Box for Planers | metal planers |
| 1,707,572 | Apr. 02, 1929 | L.G. Roller | Valve Grinder | valve grinding tools |
| 1,707,670 | Apr. 02, 1929 | A.C. Savidge | Valve Facing Tool | valve facing tool |
| 1,707,708 | Apr. 02, 1929 | J.E. Caster | Process for the Production of Spherical Articles | grinding machines |
| 1,707,761 | Apr. 02, 1929 | F. Hardinge, B.H. Connor | Oil burner | industrial furnaces |
| 1,707,764 | Apr. 02, 1929 | C.L. Mattison | Machine tool | circular crosscut saws |
| 1,707,787 | Apr. 02, 1929 | E.O. Estwing | Estwing Hammer & Hatchet Handle | hammer handles |
| GB-308,874 | Apr. 04, 1929 | n. listed | Improvements in or Relating to Grinding or Abrading Machines | grinding machines |
| GB-308,875 | Apr. 04, 1929 | n. listed | Improvements Relating to Grinding or Abrading Machines | grinding machines |
| RE17,259 | Apr. 09, 1929 | C.W. Bennett | Tool Holder | lathe tool holders and tool posts |
| 1,708,158 | Apr. 09, 1929 | E.H. Stedman | Valve structure for compressors | air compressors |
| 1,708,183 | Apr. 09, 1929 | A. Levedahl | Spindle lock | |
