| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 3 | |
| #2 | United Kingdom | 3 | |
| #3 | Germany | 2 | |
| #4 | Japan | 2 | |
| #5 | Canada | 1 | |
| #6 | Spain | 1 | |
| #7 | Yugoslavia (Serbia and Montenegro) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Writing or drawing tools | |
| #2 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mutschler Otto | 2 |
| #2 | Otsutoo Mutsuchiyureru | 1 |
| #3 | Mutschler O | 1 |
| #4 | Mutschler Philipp | 1 |
| #5 | Otsutoo Muchiyureru | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR2307445A7 | Push button operated pencil - has spring loaded gripping sleeve bearing against face on stem and securing lead | |
| ES400374A1 | Improvements in the construction of ink for stylographics. (Machine-translation by Google Translate, not legally binding) | |
| GB1344435A | Nonrefillable fountain pen | |
| GB1277328A | Improvements in and relating to fountain pens |