| Patents Granted on 1928-07-31 |
Patents 1 -
15
of 17
      |
| Number | Date | Patentee | Title | Type |
| 1,678,712 | Jul. 31, 1928 | L.D. Smith | Pipe-seat-Cutting Machine | portable turning tools |
| 1,678,820 | Jul. 31, 1928 | L.T. Medholdt | Cutter head | cutterheads |
| 1,678,835 | Jul. 31, 1928 | W.O. Vivarttas | Chip breaker for molding machines and the like | molders |
| 1,678,897 | Jul. 31, 1928 | E.T. Adams | Internal Combustion Engine | oil engines |
| 1,678,905 | Jul. 31, 1928 | M.J. Goldberg | Pressure Relief Means | compressor relief valves |
| 1,678,908 | Jul. 31, 1928 | C.B. Jahnke | Governor Control for Internal Combustion Engines | internal combustion engine governors |
| 1,679,027 | Jul. 31, 1928 | C. Gabrielson, A. Meldrum | Drilling machine | drill presses |
| 1,679,043 | Jul. 31, 1928 | J.E. Lovely | Auxiliary Grooving or Facing Attachment for Fay Lathes | metal lathe accessories and attachments |
| 1,679,074 | Jul. 31, 1928 | R.L. Carter | Template for guiding routers | handheld power tool accessories |
| 1,679,103 | Jul. 31, 1928 | W.S. Thomson | Electrically-driven circular saw | tablesaws |
| 1,679,155 | Jul. 31, 1928 | E.L. Connell | Power hand tool | |
| 1,679,175 | Jul. 31, 1928 | F. Schneider, E.L. Connell | Chuck | |
| 1,679,178 | Jul. 31, 1928 | N.H. Shillman | Tape Casing | tape measures |
| 1,679,185 | Jul. 31, 1928 | B.W. Sweet | Screw driver | |
| 1,679,189 | Jul. 31, 1928 | A.H. Wadell | Micrometer Attachment for Adjusting Tools | micrometers |
