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| Patents for United States Envelope Co. | |||||
| Picture | Number | Date | Patentee | Title | |
![]() | 889,269 | Jun. 02, 1908 | E.B. Stimpson | Envelop-fastener | |
| 924,778 | Jun. 15, 1909 | G.H. Haslop | Adjusting Device for Cutting Dies | ||