| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Handles for hand implements | |
| #2 | Punching metal | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Martin Hokanson | 10 |
| #2 | Hokanson Martin | 2 |
| #3 | Olson Archie M | 1 |
| #4 | Carlson Edward G Jr | 1 |
| #5 | Keller John Richard | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1614956A | Shovel and process of making the same | |
| US1755923A | Shovel | |
| US1662610A | Tool handle | |
| US1499174A | Shovel making | |
| US1644881A | Shovel | |
| US1776434A | Hollow-back shovel | |
| US1498523A | Tool handle | |
| US1603771A | Tool handle | |
| US1545770A | Shovel | |
| US1648685A | Shovel handgrip | |
| CA599479A | Paint composition | |
| CA241278A | Tool handle | |
| CA276112A | Shovel handle |