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| Patents for John Ambler Jr. | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,900X | Oct. 16, 1827 | J. Ambler, Jr. | Lever percussion gun lock | gunsmith | |
| 6,267X | Dec. 06, 1830 | D.C. Ambler, J. Ambler, Jr. | Pressure or weighted grist mill | grist mills | |
| 6,554X | Jun. 13, 1831 | J. Ambler, Jr. | Soda water apparatus | ||
| 7,405X | Feb. 02, 1833 | J. Ambler, Jr. | Reaction water wheel | water wheels | |
| 7,406X | Feb. 02, 1833 | J. Ambler, Jr. | Reaction water wheel (patented Feb. 2, 1833, reissued) | water wheels | |