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| All Patents in class 206/45.24 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,772,932 | Aug. 12, 1930 | S. Einstein | Grinding Machinery | grinding machines | |
| 1,816,598 | Jul. 28, 1931 | A.L. Martin | Merchandise Display Box | wrench set holders | |