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| Patents for Berthold R. Zitner | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 2,441,683 | May 18, 1948 | B.R. Zitner | Quickly adjustable vise | |
 | 2,464,630 | Mar. 15, 1949 | B.R. Zitner | Screw-operated vise having a rack-engaging nut-actuated rocking pawl for quick adjustment | |
 | 2,627,787 | Feb. 10, 1953 | B.R. Zitner | T-slot clamp | |
 | 3,185,470 | May 25, 1965 | B.R. Zitner | Universal work clamping fixtures for machine tools | |
 | 3,291,168 | Dec. 13, 1966 | B.R. Zitner | Cut-off saw for bar or tube stock | |