| Patents Granted on 1877-07-31 |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| RE7,820 | Jul. 31, 1877 | M. Sweet | Improvement in curry-combs | |
| RE7,825 | Jul. 31, 1877 | E. Andrews, W. Tucker | Improvement in machines for making match-blocks | match making machines |
| 193,609 | Jul. 31, 1877 | C. Hopkins | Improvement in slide-rests for watch-makers' lathes | watchmakers lathes |
| 193,618 | Jul. 31, 1877 | R.G. Rowe, I.B. Edington | Improvement in hub-boring machines | drilling and boring |
| 193,632 | Jul. 31, 1877 | C.H. Amidon | Brace-wrench | brace wrenches |
| 193,667 | Jul. 31, 1877 | A.B. Lipsey | Improvements in Adjustable Wrenches | screw adjust wrenches |
| 193,706 | Jul. 31, 1877 | W. Hinchliffe | Improvement in scroll-sawing machines | scrollsaws |
| 193,715 | Jul. 31, 1877 | R. Binns, E.E. Latham | Machines for Grinding Calender Rolls | roll grinding machines |
| 193,721 | Jul. 31, 1877 | A.M. Norton, S.G. North | Lathe Dogs | lathe dogs |
| 193,737 | Jul. 31, 1877 | L. Walker | Traction Engines | steam traction engines |
| 193,740 | Jul. 31, 1877 | C.J. Wilson | Improvement in saws | saw teeth |
| 193,746 | Jul. 31, 1877 | S.D. Albright, G.W. Albright | Improvement in machines for making and sapping shingle-bolts | shingle machines |
| 193,748 | Jul. 31, 1877 | C.P. Brown | Improvement in Devices for Applying Edge-Tools to Sharpeners | sharpening machines |
| 193,769 | Jul. 31, 1877 | J.W. McCurdy | Matcher cutter-head | cutterheads |
| 193,774 | Jul. 31, 1877 | D.C. Newell | Improvement in safety-traps for chip-carriers in wood-working machinery | waste collection mechanisms |
