| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 15 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Textiles and paper | |
| #3 | Control | |
| #4 | Electrical machinery and energy | |
| #5 | Computer technology | |
| #6 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Handling thin material | |
| #2 | Stamps | |
| #3 | Ticket-issuing devices | |
| #4 | Printing machines | |
| #5 | Clutches and brakes | |
| #6 | Electric switches | |
| #7 | Counting mechanisms |
| # | Name | Total Patents |
|---|---|---|
| #1 | Jahn Frederick G | 13 |
| #2 | Hey George W | 1 |
| #3 | Dolphin Matthew J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1100570A | Mail sorting and stacking machine. | |
| US1116070A | Power-drive for canceling-machines. | |
| US1134271A | Trip for canceling-machines. | |
| US1065945A | Printing mechanism. | |
| US869783A | Printing mechanism. | |
| US861367A | Printing mechanism. | |
| US863997A | Counting or registering mechanism. | |
| US856347A | Feeding mechanism. | |
| US856346A | Feeding mechanism. | |
| US856345A | Mail-marking machine. | |
| US861366A | Clutch mechanism. | |
| US861365A | Rheostat. | |
| US915278A | Postmarking-machine. | |
| US657939A | Mail-matter-marking machine. | |
| US687232A | Stamp-canceling and postmarking machine. |