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| Patents for R. & E. Mfg. Co | |||||
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| Number | Date | Patentee | Title | Type | |
| 178,354 | Jun. 06, 1876 | M. Wilcox | Improvement in Spirit Levels | levels | |
| 201,276 | Mar. 12, 1878 | J. Morss | Improvement in Spirit Level and Plumb | wooden levels | |