| Patents Granted on 1827-05-?? |
Patents 1 -
15
of 34
      |
| Number | Date | Patentee | Title | Type |
| 4,743X | May 10, 1827 | H. Wise, J.R. Rowel | Machine for making tubes of clay | |
| 4,744X | May 12, 1827 | G. Davis, J. Price | Scraper or Team shovel | scrapers |
| 4,745X | May 14, 1827 | J. Poole | Steam engine boilers | stationary boilers |
| 4,746X | May 14, 1827 | E.A. Lester | Construction of steam boiler | stationary boilers |
| 4,747X | May 14, 1827 | J. Daley | Improvement called a portable bedstead | |
| 4,748X | May 14, 1827 | A. Holcomb | Paint mill | paint grinding mills |
| 4,749X | May 14, 1827 | D. Dodge | Extracting oil from flaxseed | |
| FX-4,749 | May 14, 1827 | E.A. Lester | Oscillating Steam Engine | oscillating steam engines |
| 4,750X | May 14, 1827 | J. Webb | Marine rail ways | |
| 4,751X | May 14, 1827 | J.V. (VanDorn) | Safety gate for canals | |
| 4,752X | May 14, 1827 | J. Towson | Stocks | |
| NX-182,505,141 | May 14, 1827 | J. Van Dorn | Safety gate for canals | locks |
| 4,753X | May 15, 1827 | B. Stancliff (Standcliffe) | Valve cock for hydrants | |
| 4,754X | May 15, 1827 | T. Loud, Jr. | Horizontal piano fortes | music instrument maker |
| 4,755X | May 15, 1827 | M. Ward | Use of heated air, gases, etc. in the aid of steam power | steam apparatus |
