| Patents for Harry W. Aiken |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 415,114 | Nov. 12, 1889 | J.M. Martin | Implement for Removing Nuts from the Ends of Bolts Located on the Insides of Stoves and in Other Places Difficult of Access | ratchet wrenches |
| 415,780 | Nov. 26, 1889 | E.N. Higley | Machine for drilling railway-rails, &c. | portable metal drilling machines |
| 492,570 | Feb. 28, 1893 | G.M. Casey | Bottle Opening Implement | non worm cork extractors |
| 509,851 | Nov. 28, 1893 | H.E. Britton | Tool Holder | |
| 516,294 | Mar. 13, 1894 | H.E. Britton | Tool Holder | |
