| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 4 |
| # | Industry | |
|---|---|---|
| #1 | Textiles and paper | |
| #2 | Machines | |
| #3 | Computer technology | |
| #4 | Machine tools | |
| #5 | Transport | |
| #6 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Copy machines | |
| #2 | Unspecified technologies | |
| #3 | Printing machines | |
| #4 | Photographic composing devices | |
| #5 | Perforating | |
| #6 | Bookbinding | |
| #7 | Guiding railway traffic | |
| #8 | Data recognition and presentation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Read Worth G | 14 |
| Publication | Filing date | Title |
|---|---|---|
| US3238358A | Method and apparatus of identifying railroad cars | |
| US2455384A | Punch sheet record | |
| US2498896A | Apparatus for identifying mobile equipment | |
| US2338058A | Machine for binding groups of unit sheets | |
| US2223048A | Composing fork | |
| US2267044A | Printing mechanism | |
| US2211910A | Printing mechanism | |
| US2045408A | Printing mechanism | |
| US2025307A | Printing machine | |
| US1995130A | Printing device | |
| CA781300A | Method and apparatus of identifying railroad cars | |
| CA413789A | Printing mechanism | |
| CA417636A | Unit sheet binding machine | |
| CA407774A | Printing mechanism |