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| All Patents in class 69/3 | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,405X | Sep. 13, 1834 | D. Cleaveland | Horse machine collars | ||
| 13,087 | Jun. 19, 1855 | R.R. Gray | Expanding-Block for Horse Collars | ||
| 391,133 | Oct. 16, 1888 | W. Foglesong | Horse Collar Hammer | power hammers | |