| Patents for Charles H. Smith |
Patents 31 -
45
of 80
      |
| Number | Date | Patentee | Title | Type |
| 137,970 | Apr. 15, 1873 | M. Stephens | Improvement in cement-lined pipes | pipes |
| 141,091 | Jul. 22, 1873 | A.P. Stephens | Improvement in broaching-machines | tool making machines |
| 142,528 | Sep. 02, 1873 | M. Stephens | Improvement in cement-lined pipes | pipes |
| D6,894 | Sep. 23, 1873 | J.M. Waters | Chairs | chairs |
| 143,273 | Sep. 30, 1873 | W.D. Chase | Machine for Cutting and Threading Pipes, &c. | pipe threading machines |
| 143,473 | Oct. 07, 1873 | M. Stephens | Improvement in machines for punching sheet metal | metal punching machines |
| 144,155 | Oct. 28, 1873 | M. Stephens | Improvement in rotary shears for metal | metalworking machines |
| 144,590 | Nov. 18, 1873 | L.A. Aspinwall | Corn Husking Machines | miller |
| 146,287 | Jan. 06, 1874 | D. Slate | Improvement in Milling-Machines | milling machines |
| 149,084 | Mar. 31, 1874 | J.M. Waters | Improvement in forms for bending wood | wood bending machines |
| 150,266 | Apr. 28, 1874 | E.A. Sutcliffe | Governors for Engines | steam engine governors |
| 155,473 | Sep. 29, 1874 | N. Stephens | Improvement in cement-lined pipes | pipes |
| 155,640 | Oct. 06, 1874 | W. Cobban, C.H. Smith | Improvement in paneling-machines | panel raising machines |
| 156,386 | Oct. 27, 1874 | B.F. Stephens | Improvement in movable vise-jaws | vise jaws |
| 158,539 | Jan. 05, 1875 | M. Stephens | Improvement in cement pipes | pipes |
