| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 | |
| #2 | Canada | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements | |
| #3 | Machine tools | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Locomotives | |
| #2 | Pipes | |
| #3 | Unspecified technologies | |
| #4 | Tools for connecting or disengaging | |
| #5 | Punching metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gapp John | 15 |
| Publication | Filing date | Title |
|---|---|---|
| US1257475A | Combined pipe-flanging and bench vise. | |
| US1219543A | Gravity sanding device. | |
| US1219542A | Track-sanding device. | |
| US1176358A | Track-sanding device. | |
| US1102577A | Track-sanding device. | |
| US1034781A | Pipe-coupling. | |
| CA133888A | Track sander | |
| US991145A | Track-sanding device. | |
| US1016620A | Pipe-coupling. | |
| US950531A | Track-sanding device. | |
| US841388A | Pipe-expanding tool. | |
| US769896A | Coupling. | |
| US695300A | Track-sanding appliance. | |
| GB190111260A | Sanding Apparatus for Locomotives. | |
| US674762A | Sanding apparatus for locomotives. |