| Patents for Robert C. Ellrich |
Patents 1 -
10
of 13
      |
| Picture | Number | Date | Patentee | Title |
 | 288,560 | Nov. 13, 1883 | R.C. Ellrich | Tool Handle |
 | 289,056 | Nov. 27, 1883 | R.C. Ellrich, G.S. Allen | Screwdriver |
 | 293,957 | Feb. 19, 1884 | R.C. Ellrich | Pawl and ratchet |
 | 333,618 | Jan. 05, 1886 | R.C. Ellrich | Pipe Cutter |
 | 341,136 | May 04, 1886 | R.C. Ellrich | Ellrich patent saw set |
 | D20,448 | Jan. 06, 1891 | R.C. Ellrich | Design For A Monkey Wrench |
 | 475,055 | May 17, 1892 | R.C. Ellrich | Tool-chuck |
 | 780,787 | Jan. 24, 1905 | R.C. Ellrich | Wrench |
 | 809,936 | Jan. 16, 1906 | R.C. Ellrich | Bit-brace jaw |
| | 821,687 | May 29, 1906 | R.C. Ellrich, P.A. Whitney | Chuck |
