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Patents for John Whittingham | |||||
Number | Date | Patentee | Title | Type | |
316,774 | Apr. 28, 1885 | J. Whittingham, R.H. Shaw, A. Greig | Traction Engine | traction engine propulsion components | |
CA-24,431 | Jul. 05, 1886 | R.H. Shaw, J. Whittingham, A. Grieg | Locking and Driving Gear of Traction Engine, Steam Plough Engine, Etc. | traction engine propulsion components |