| Patents Granted on 1878-04-30 |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| CA-8,720 | Apr. 30, 1878 | B. Holly | Systeme de Chauffage a la Vapeur | steam heating |
| CA-8,725 | Apr. 30, 1878 | B. Holly | Perfectionnement Dans Les Generateurs de Vapeur | stationary boilers |
| CA-8,733 | Apr. 30, 1878 | B. Holly | Improvement in Meter Valves | steam heating |
| D10,656 | Apr. 30, 1878 | H. Hammond | Design for Machinist's Hammers | hammers |
| 202,918 | Apr. 30, 1878 | L. Bailey | Improvement in Carpenters' Planes | block planes |
| 202,948 | Apr. 30, 1878 | P.H. Kells | Improvement in brick and tile machines | manufacturing bricks and tiles |
| 202,964 | Apr. 30, 1878 | H.M. Rounds | Improvement in machines for making staves | barrel making machines |
| 203,111 | Apr. 30, 1878 | P. Broadbooks | Mechanical Movement | punch presses |
| 203,131 | Apr. 30, 1878 | A.C. Gallahue | Machine for Making Shoe Peg Blanks | shoe and boot making machines |
| 203,162 | Apr. 30, 1878 | W.D. Johnson | Improvement in barrel-hoop-cutting machines | hoop making machines |
| 203,167 | Apr. 30, 1878 | E.E. Leach | Improvement in Combined Anvil and Vise | anvil vises |
| 203,182 | Apr. 30, 1878 | S.T. Moffett | Improvement in machines for spirally sawing logs | sawmill carriages |
| 203,196 | Apr. 30, 1878 | G.W. Rodebaugh | Improvement in gates | |
| 203,234 | Apr. 30, 1878 | P.C. Wright, M. Wright | Improvement in stone and glass polishers | polishing and buffing machinery |
