| Patents for John B. Dougherty |
Patents 1 -
10
of 18
      |
| Picture | Number | Date | Patentee | Title |
 | 33,153 | Aug. 27, 1861 | J.B. Dougherty, P.H. Lawler | Improvement in machines for forming barrel-heads |
 | 37,885 | Mar. 10, 1863 | J.B. Dougherty | Improved machine for sawing barrel-heads, shingles, etc. |
 | 39,720 | Sep. 01, 1863 | J.B. Dougherty | Improvement in barrel-hoops |
 | 40,250 | Oct. 13, 1863 | J.B. Dougherty | Improvement in barrel-hoops |
 | 40,613 | Nov. 17, 1863 | J.B. Dougherty | Improved hoop-machine |
 | 41,688 | Feb. 23, 1864 | J.B. Dougherty | Improvement in machines for making splints for barrel-hoops |
 | 58,618 | Oct. 09, 1866 | J.B. Dougherty | Improvement in shingle machines |
 | 68,856 | Sep. 17, 1867 | J.B. Dougherty | Improvement in barrel-head machines |
 | RE3,443 | May 18, 1869 | J.B. Dougherty | Machine for making barrel-hoop splints |
 | 92,591 | Jul. 13, 1869 | J.B. Dougherty | Improvement in shingle-machine |
