| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | United Kingdom | 3 | |
| #3 | Canada | 2 | |
| #4 | Germany | 2 | |
| #5 | Brazil | 1 | |
| #6 | Switzerland | 1 | |
| #7 | France | 1 | |
| #8 | Japan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Punching metal | |
| #2 | Unspecified technologies | |
| #3 | Cutting | |
| #4 | Unspecified technologies | |
| #5 | Perforating | |
| #6 | Nails |
| # | Name | Total Patents |
|---|---|---|
| #1 | Whistler S Arthur | 6 |
| #2 | Krueger Clarence L | 3 |
| #3 | Whistler Lawrence V | 2 |
| #4 | Kuraarensu Eru Kuruugaa | 1 |
| #5 | V Lorenz Jun Lorenz | 1 |
| #6 | Whistler Laurence V Sr | 1 |
| #7 | V Whistler Sen Lorenz | 1 |
| #8 | Lawrence V Sr Whistler | 1 |
| #9 | Lawrence V Jr Whistler | 1 |
| #10 | Whislter Laurence V Jr | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5356252A | Unitized expanding dowel | |
| US4947716A | Punch and die system | |
| US4947719A | Punch and die system | |
| US4947718A | Punch and die system | |
| US4947717A | Punch and die system | |
| US4843931A | Punch and die system | |
| CA1068596A | Assembly for enabling close tolerance punching with a reusable system | |
| US4104941A | Assembly for enabling close tolerance punching with a reusable system | |
| GB1284958A | Die retaining devices | |
| GB1061517A | Punch stripper apparatus | |
| US1939478A | Die and punch mounting | |
| US1986036A | Perforating die and stripping mechanism therefor |