| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | United States | 5 | |
| #3 | Germany | 2 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Goods for writing upon | |
| #2 | Writing or drawing tools | |
| #3 | Punching metal | |
| #4 | Metal-working |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kazue Akashi | 5 |
| Publication | Filing date | Title |
|---|---|---|
| US1680194A | Drawing compass having a lengthening device of legs | |
| US1619392A | Beam compass | |
| GB205410A | Improvements in drawing compasses | |
| GB199676A | Improvements in beam compasses | |
| GB187420A | Improvements in a process of manufacturing blades for drawing pens | |
| US1497828A | Drawing pen or pencil holder | |
| US1503934A | Drawing compasses | |
| US1402034A | Process of manufacturing blades for drawing pens |