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| All Patents in class 156/522 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,329,669 | Sep. 14, 1943 | H.B. Tuthill | Label attaching machine | ||
| 2,378,112 | Jun. 12, 1945 | H.B. Tuthill, H.F. Caldwell | Adjustable labeling device | ||