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| Patents for Rolls-Royce Ltd. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | D177,097 | Mar. 13, 1956 | G.J. Hudson | Drilling machine unit or the like | |
 | GB-1,445,977 | Aug. 11, 1976 | D.R. McMurtry | Probes | |
 | 4,270,275 | Jun. 02, 1981 | D.R. McMurtry | Probes | |