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All Patents in class 177/240 | |||||
Number | Date | Patentee | Title | Type | |
8,794X | Apr. 22, 1835 | J.B. Maag | Balance (Weighing machine) | ||
8,847X | May 29, 1835 | A. Hibbard, E.A. Hibbard | Double lever scale | ||
9,678X | May 23, 1836 | J.M. Peck | Platform balance |