| All Patents of Type: squares |
Patents 1 -
15
of 189
      |
| Number | Date | Patentee | Title | Type |
| 4,687X | Feb. 28, 1827 | J.G. Wilson | Tailor's Square | squares |
| 7,566X | May 03, 1833 | J.G. Wilson | Tailor's Square | squares |
| 7,817X | Nov. 19, 1833 | B.J. Lewis | Tailor's Square and Measure | squares |
| 9,860X | Jul. 01, 1836 | J. Frederick | Tailor's Square | squares |
| 8,897 | Apr. 20, 1852 | F. Wilbar | Improved Reflecting Spirit Level and Square | levels |
| 11,841 | Oct. 24, 1854 | J. Shanklin | Square, Scale, Level, and Bevel | squares |
| 13,127 | Jun. 26, 1855 | C.J. Ackerman, J.S. Halstead | Try Square and Bevel | squares |
| 14,863 | May 13, 1856 | J. Gorham | Handsaw | combination saws |
| 20,313 | May 18, 1858 | H. Smith | Device Attached to Handsaws for Squaring and Marking | combination saws |
| 20,943 | Jul. 20, 1858 | W.O. Fritschler | Carpenter's Rule | folding rules |
| 21,861 | Oct. 19, 1858 | L. Yale, Jr. | Square Adjustment | squares |
| 22,585 | Jan. 11, 1859 | W. Ripley | Framing-Square | squares |
| 31,987 | Apr. 09, 1861 | R.B. Light | Machinist's Square | squares |
| 35,159 | May 06, 1862 | J. Iseman | Framing Square | squares |
| 39,124 | Jul. 07, 1863 | D.G. Davidson, E. Pullen, J.S. Davidson | Plumb, Level, and Square | plumbs |
