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| Patents for Elmer J. Ondeck | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 2,780,944 | Feb. 12, 1957 | E.J. Ondeck | Reversible drive for power tools | |
| 2,839,952 | Jun. 24, 1958 | E.J. Ondeck | Reversible Power Tool Drive Attachment | ||
| 2,893,743 | Jul. 07, 1959 | E.J. Ondeck | Chuck with Ball Locking Means | ||
| 2,910,302 | Oct. 27, 1959 | E.J. Ondeck | Cam Chuck | ||
| CA-594,479 | Mar. 15, 1960 | E.J. Ondeck | Reversible Drive for Power Tools | ||
| 3,054,464 | Sep. 18, 1962 | E.J. Ondeck | Electric Hammer | ||
| 3,251,605 | May 17, 1966 | E.J. Ondeck | Quick Release Chuck | ||