| All Patents in class 33/420 |
Patents 1 -
10
of 17
      |
| Picture | Number | Date | Patentee | Title |
 | 11,841 | Oct. 24, 1854 | J. Shanklin | Square, Scale, Level, and Bevel |
 | 14,329 | Feb. 26, 1856 | H. Whipple | Instrument for measuring the length of braces in carpentry |
 | 35,159 | May 06, 1862 | J. Iseman | Framing Square |
| | 158,843 | Jan. 19, 1875 | J. Baumgartner, A. Iske | Carpenters' Sliding Gages and Squares |
 | 185,706 | Dec. 26, 1876 | W.P. Tullock | Improvement in centering devices |
 | 243,592 | Jun. 28, 1881 | F.N. Marvick | Jointed Pitch Board for Squares |
 | 433,383 | Jul. 29, 1890 | W.H. Wood | Pitch Board |
| | 642,888 | Feb. 06, 1900 | A. Van Vliet | Combination Tool |
 | 650,436 | May 29, 1900 | N. Squier, F.B. Townsend | Combination Tool |
 | 795,160 | Jul. 18, 1905 | M. Nicholls | Rafter Attachment for Steel Squares |
