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All Patents in class 33/383 | |||||
Number | Date | Patentee | Title | Type | |
953,863 | Apr. 05, 1910 | D.E. Shaw | Combination Attachment for Tools | bevels | |
1,177,131 | Mar. 28, 1916 | W.J. Neidl | Level | levels | |
1,241,399 | Sep. 25, 1917 | E.A. King | Level | wooden levels | |
1,267,456 | May 28, 1918 | A.P. Runge | Leveling instrument | levels | |
1,435,365 | Nov. 14, 1922 | H.J. Zieman | Adjustment for Level Vials | level adjustments | |
1,462,430 | Jul. 17, 1923 | P.H. Vogel | Spirit Level | levels | |
1,624,339 | Apr. 12, 1927 | O.D. Hapgood | Level | levels |