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| Patents for John Robert Ingham | |||||
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| Picture | Number | Date | Patentee | Title | |
 | GB-190,821,428 | Sep. 16, 1909 | J.R. Ingham | Improvements in milling cutters | |
 | GB-197,541 | May 17, 1923 | J.R. Ingham | Improvements in die heads for screwing machines | |
 | GB-205,274 | Oct. 18, 1923 | J.R. Ingham | Improvements in horizontal spindle plano milling machines | |
 | GB-300,389 | Nov. 15, 1928 | J.R. Ingham | Improvements in or connected with screwing machines | |