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| Patents for Dobbie-McInnes, Ltd. | |||||
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| Number | Date | Patentee | Title | Type | |
| GB-189,925,244 | Nov. 24, 1900 | J.C. Dobbie | Indicators | steam engine indicators | |
| 689,640 | Dec. 24, 1901 | J.C. Dobbie | Steam Engine Indicator | steam engine indicators | |