| Patents for H. G. Underwood |
Patents 1 -
15
of 19
      |
| Number | Date | Patentee | Title | Type |
| 273,304 | Mar. 06, 1883 | J.L. Perry | Abrading cutter-head | sanding machines |
| 285,666 | Sep. 25, 1883 | J.L. Perry | Abrading-cylinder | sanding machines |
| 297,838 | Apr. 29, 1884 | F.E. Parsons | Combined Household Implement | combination tools |
| 302,121 | Jul. 15, 1884 | J.A. Frenzel | Shingle-edging machine | shingle machines |
| 304,601 | Sep. 02, 1884 | F.W. Boettcher | Combined Square, Level and Triangle | bevel squares |
| 313,540 | Mar. 10, 1885 | R.S. Sheldon | Bench Plane | |
| 349,390 | Sep. 21, 1886 | R. Wilcox, G.A. Gilbert | Conveyor for grain, etc. | waste collection mechanisms |
| 361,068 | Apr. 12, 1887 | E.T. Lemm | Feed mechanism for saw-mill carriages | sawmill feed works |
| 392,841 | Nov. 13, 1888 | E. Beard | Device for canting logs and operating saw-mill dogs | sawmill dogs |
| 430,398 | Jun. 17, 1890 | J.M. Nash | Machine for smoothing curved surfaces | sanding machines |
| 431,110 | Jul. 01, 1890 | C.H. Driver | File for drawings, plans, and heavy documents | office worker |
| 444,965 | Jan. 20, 1891 | T.S. Wilkin | Gang-saw mill | reciprocating sawmills |
| 466,099 | Dec. 29, 1891 | H.F. Hegeman | Folding Square | carpenter squares |
| 490,212 | Jan. 17, 1893 | P. O'Connor | Band sawing-machine | bandsaws |
| 546,321 | Sep. 17, 1895 | A. Gumz | Spokeshave | spokeshaves |
