| Patents for Armstrong Manufacturing Co. |
Patents 1 -
10
of 15
      |
| Picture | Number | Date | Patentee | Title |
 | 269,141 | Dec. 12, 1882 | N.W. Vandegrift | Pipe Vise |
 | 274,544 | Mar. 27, 1883 | F. Armstrong | Wrench |
 | 298,043 | May 06, 1884 | N.W. Vandegrift | Wrench |
 | 330,175 | Nov. 10, 1885 | N.W. Vandegrift, F. Armstrong | Pipe-cutter |
 | 335,986 | Feb. 09, 1886 | N.W. Vandegrift, F. Armstrong | Wrench |
 | 337,627 | Mar. 09, 1886 | F.H. Seymour | Pipe Wrench Attachment For Monkey Wrenches |
 | 383,165 | May 22, 1888 | F. Armstrong, N.W. Vandegrift | Bench Vise |
 | 392,300 | Nov. 06, 1888 | F. Armstrong, N.W. Vandegrift | Wrench |
 | 396,857 | Jan. 29, 1889 | L.F. Carstensen | Wrench |
| | 434,424 | Aug. 19, 1890 | A.W. Cash | Pipe Threading and Cutting Off Machine |
