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| Patents for Robert James Welsh | |||||
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| Number | Date | Patentee | Title | Type | |
| GB-1,142,939 | Feb. 12, 1969 | R.J. Welsh | Improvements in steadies for grinding machines | ||
| GB-1,161,477 | Aug. 13, 1969 | R.J. Welsh | Improvements in mechanical handling devices | ||
| GB-1,181,156 | Feb. 11, 1970 | R.J. Welsh | Improvements in grinding machines | ||
| GB-1,183,370 | Mar. 04, 1970 | R.J. Welsh | Improvements in grinding machines | ||
| DE-1,752,850 | Aug. 12, 1971 | R.J. Welsh | Bockkranbeschickungsvorrichtung | ||