| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 29 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Furniture and games | |
| #3 | Computer technology | |
| #4 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Filing and indexing | |
| #2 | Books | |
| #3 | Office furniture | |
| #4 | Data recognition and presentation | |
| #5 | Copy machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Martin Alfred M | 31 |
| Publication | Filing date | Title |
|---|---|---|
| US2459385A | Vertical file | |
| US2439943A | Card handling device | |
| US2421799A | Loose-leaf binder | |
| US2359376A | Visible records file or the like | |
| US2364640A | Record visualizing device | |
| US2365643A | Loose-leaf binder | |
| US2318239A | Visible record | |
| US2326241A | Visible records device | |
| US2282976A | Loose-leaf binder | |
| US2170642A | Slip accounting device | |
| US2193181A | Loose-leaf handling means | |
| US2140207A | Slip accounting means | |
| US2140206A | Slip accounting means | |
| US2129224A | Loose leaf device | |
| US2251614A | Loose-leaf binder | |
| US2144659A | Bookstand | |
| US2129223A | Loose leaf binder | |
| US1795374A | Shift binder | |
| US1854751A | Partition sheet | |
| US1812886A | Partition sheet |