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Patents for Maritime Foundry & Machine Works | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | CA-141,815 | Jul. 23, 1912 | M.W. Downie | Combination track gauge and recorder | |
![]() | 1,066,188 | Jul. 01, 1913 | M.W. Downie | Combination track gauge and recorder |