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| All Patents in class 229/78.2 | |||||
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| Number | Date | Patentee | Title | Type | |
| 651,126 | Jun. 05, 1900 | E.B. Stimpson | Envelop-fastening device | ||
| 889,269 | Jun. 02, 1908 | E.B. Stimpson | Envelop-fastener | ||
| 928,163 | Jul. 13, 1909 | A.C. Leahy | Fastener | ||
| 954,479 | Apr. 12, 1910 | E.B. Stimpson | Envelop-fastener | ||