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| Patents Granted on 1897-04-20 | |||||
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| Number | Date | Patentee | Title | Type | |
| D26,943 | Apr. 20, 1897 | H.S. Walbridge | Design for a hood for stereoscopes | ||
| 580,905 | Apr. 20, 1897 | C.H. Shank | Wrench | brace wrenches | |
| 580,910 | Apr. 20, 1897 | U. Townsend, estate of (deceased) | Combination Center Square | ||
| 581,178 | Apr. 20, 1897 | S.J. Shimer | Cutter-head | cutterheads | |
| 581,187 | Apr. 20, 1897 | F.E. Wells, W.C. Wells | Machine for Making Nipples and Stud Bolts | pipe making machines | |