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| All Patents in class 222/424.5 | |||||
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| Number | Date | Patentee | Title | Type | |
| RE4,197 | Dec. 13, 1870 | S. Darling | Improvment in Inkstands | draftsman | |
| 2,134,133 | Oct. 25, 1938 | J.N. Landau | Massage device | ||