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Patents for Jarvis Ring | |||||
Number | Date | Patentee | Title | Type | |
4,145X | Jun. 11, 1825 | J. Ring, J. Lee | Improvement on Lee's machine for brick moulding and making | brick and tile making machines | |
7,261X | Oct. 25, 1832 | J. Ring | Propelling boats | nautical propulsion apparatus | |
1,669 | Jul. 01, 1840 | J. Ring | Machine for Removing Earth, etc. | excavators |