| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 17 | |
| #2 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Filing and indexing | |
| #2 | Special books |
| # | Name | Total Patents |
|---|---|---|
| #1 | Thieme Alfred Martin | 3 |
| #2 | Overhoff Geb | 1 |
| #3 | Thieme Erna | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB496850A | Improvements in or relating to card indexes | |
| GB273704A | Improvements in and relating to holders for loose sheets, index cards and the like |