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| All Patents in class 400/636 | |||||
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| Number | Date | Patentee | Title | Type | |
| 577,104 | Feb. 16, 1897 | J.H. Dorman | Card or envelop holder for type-writers | office worker | |
| 687,167 | Nov. 19, 1901 | A.H. Roovers, A.W. Roovers | Die press | ||
| 763,165 | Jun. 21, 1904 | J.H. Dorman | Paper-carriage for type-writing machines | office worker | |