| All Patents of Type: office worker |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 228X | Jan. 17, 1799 | M.I. Brunel | Machine for writing with two pens | office worker |
| 241X | Mar. 19, 1799 | J. Perkins | Check to detect counterfeits | office worker |
| 5,581X | Jul. 23, 1829 | W.A. Burt | Printing Machine Styled the Typographer | office worker |
| 79,265 | Jun. 23, 1868 | S.W. Soule, C. Glidden, C.L. Sholes | Type Writing Machine | office worker |
| 243,863 | Jul. 05, 1881 | W.L. Deming | Detachably-covered book | office worker |
| 409,324 | Aug. 20, 1889 | C.C. Hill | Perforating-stamp | office worker |
| 431,110 | Jul. 01, 1890 | C.H. Driver | File for drawings, plans, and heavy documents | office worker |
| 433,003 | Jul. 29, 1890 | C.C. Hill | Perforating-stamp | office worker |
| 475,440 | May 24, 1892 | J. Stenwall, Jr., B.F. Cummins | Perforating, dating, and receipting stamp | office worker |
| 486,858 | Nov. 29, 1892 | B.F. Cummins | Perforating-stamp | office worker |
| 577,104 | Feb. 16, 1897 | J.H. Dorman | Card or envelop holder for type-writers | office worker |
| 763,165 | Jun. 21, 1904 | J.H. Dorman | Paper-carriage for type-writing machines | office worker |
| 2,045,756 | Jun. 30, 1936 | P.H. Cone | Mechanism for Keeping Records | office worker |
