| Patents for George O. G. Coale |
Patents 1 -
9
of 9
      |
| Picture | Number | Date | Patentee | Title |
 | 195,877 | Oct. 09, 1877 | D.F. Barber | Improvement in Countersinks |
| | 197,073 | Nov. 13, 1877 | H.G. Ashton | Improvement in Safety-Valve Attachments to Utilize the Escape Steam |
| | 201,862 | Apr. 02, 1878 | H.G. Ashton | Improvement in Exhaust Mechanisms for Locomotives and Other Steam-Engines |
| | RE8,211 | May 07, 1878 | H.G. Ashton | Improvement in Safety-Valve Attachment to Utilize Escape-Steam |
 | 206,851 | Aug. 13, 1878 | H.W. Atwater | Improvement in Clamps |
| | 214,981 | May 06, 1879 | H.G. Ashton | Improvement in Safety-Valve Attachments |
 | 225,963 | Mar. 30, 1880 | C.H. Bacon | Water-meter |
| | 299,334 | May 27, 1884 | J.G. Blount | Chuck |
 | 644,430 | Feb. 27, 1900 | W. Johnson | Center Gage |
