| Patents Granted on 1819-08-?? |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 3,122X | Aug. 19, 1819 | J.C. Brush | Improvement on close and open fire places | |
| 3,123X | Aug. 20, 1819 | B. Wilmer | Machine for measuring heights and distances | |
| 3,124X | Aug. 21, 1819 | R. Bury | Glass instead of metallic strings for piano fortes | music instrument maker |
| 3,125X | Aug. 21, 1819 | D. Pettibone | Cast steel welded to iron | blacksmith |
| 3,126X | Aug. 21, 1819 | G. Fulton | Granulating gun powder | |
| 3,127X | Aug. 26, 1819 | S. Draper | Improvement in mail coaches | |
| 3,128X | Aug. 30, 1819 | G. Geib | Teaching Music by Means of a Dumb Instrument | musical instruments |
| 3,129X | Aug. 30, 1819 | C. Pommer | Producing the swell in musical stringed instruments | music instrument maker |
