| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Canada | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Spain | 2 | |
| #5 | Australia | 1 | |
| #6 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Grinding or polishing devices | |
| #2 | Tools for connecting or disengaging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wurscher Raimund A | 4 |
| #2 | Wurscher Raimund August | 2 |
| #3 | Wurscher Raimund | 2 |
| #4 | Wurscher R | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4574529A | Apparatus for grinding twist drills | |
| US4574528A | Apparatus for grinding twist drills | |
| US3753320A | Apparatus for grinding drills |