| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 4 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Packaging and shipping | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Perforating | |
| #3 | Turning | |
| #4 | Containers for goods storage | |
| #5 | Cutting | |
| #6 | Handles for hand implements | |
| #7 | Nails |
| # | Name | Total Patents |
|---|---|---|
| #1 | Zimmerman Ralph C | 8 |
| #2 | Zimmerman Charles H | 5 |
| #3 | Charles Zimmerman Ralph | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US3411207A | Hand cutting tool | |
| US3414973A | Cutting tool | |
| US2869882A | Hand tool | |
| US3027640A | Cutting tool | |
| US2880506A | Cutting implement | |
| US3057065A | Gasket cutter | |
| US2778423A | Cutting implement adapted for the cutting of circles | |
| US2580060A | Method and means for packaging sheet material | |
| US2595043A | Merchandise package | |
| US2595500A | Cutting tool | |
| CA635187A | Hand tool | |
| CA585536A | Cutting implement | |
| CA602927A | Cutting implement | |
| CA602928A | Cutting implement |