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| Patents for Frederick A. Volz | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,850,297 | Mar. 22, 1932 | F.A. Volz | Bit or Drill Holder | |
 | 1,942,316 | Jan. 02, 1934 | F.A. Volz | Stream Line Wire Wrench | |
 | 1,983,503 | Dec. 04, 1934 | F.A. Volz | Measuring Rule | |
 | 2,014,709 | Sep. 17, 1935 | F.A. Volz | Line Level | |
| D98,098 | Jan. 07, 1936 | F.A. Volz | Design for a casing for flexible measuring rules | ||
 | 2,287,457 | Jun. 23, 1942 | F.A. Volz, A.L. Stowell | Screw driver | |