| Patents Granted on 1929-05-21 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| D78,554 | May 21, 1929 | M.D. Avillar | Design For A Bottle-Seal Opener | figural cork extractors |
| 1,713,527 | May 21, 1929 | O.E. Furst | Multiple Socket Wrench | brace wrenches |
| 1,713,541 | May 21, 1929 | E.T. Larkin | Lubricant Cooling Device for Internal Combustion Engines and the Like | internal combustion engine lubrication |
| 1,713,646 | May 21, 1929 | G.H. Deyo | Boring Head | boring heads |
| 1,713,693 | May 21, 1929 | A.C. Elley | Lubricant Transfer for Multicompartment Crank Cases | internal combustion engine lubrication |
| 1,713,761 | May 21, 1929 | M.C. Dellinger, H.W. Kulp | Collapsible Valve Spring Lifter Lock | valve spring tools |
| 1,713,762 | May 21, 1929 | M.C. Dellinger, H.W. Kulp | Valve Spring Compressor | valve spring tools |
| 1,713,763 | May 21, 1929 | H.W. Kulp | Valve Spring Lifter and Compressor | valve spring tools |
| 1,713,798 | May 21, 1929 | L.E. Whiton, G.A. Midwood, Jr. | Lathe scroll chuck | metal lathe chucks |
| 1,713,803 | May 21, 1929 | L.E. Whiton | Lathe chuck | metal lathe chucks |
| 1,713,807 | May 21, 1929 | E.J. Witchger | Case for tape measure | tape measures |
| 1,714,018 | May 21, 1929 | W.H. Goldstraw | Wrench | |
| 1,714,076 | May 21, 1929 | H. Ceepo | Casing Hook | clapboard markers |
