| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 16 | |
| #2 | Canada | 6 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Filing and indexing | |
| #2 | Unspecified technologies | |
| #3 | Perforating | |
| #4 | Chairs and beds | |
| #5 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kline Fred J | 22 |
| Publication | Filing date | Title |
|---|---|---|
| US1870055A | Paper perforating device | |
| US1707227A | Binder | |
| US1755604A | Binder | |
| US1658052A | Fastener | |
| US1692780A | Lock for paper fasteners | |
| US1669830A | Lock for paper fasteners | |
| US1690230A | Lock for paper fasteners | |
| US1645430A | Paper fastener | |
| US1692779A | Paper-perforating device | |
| US1665705A | Paper-filing device | |
| US1650019A | Paper-perforating device | |
| US1652205A | Paper-filing device | |
| US1578605A | Paper fastener | |
| US1434125A | Device for securing cards or labels on filing units | |
| US1363881A | Paper-fastener | |
| US1378242A | Paper-fastener | |
| CA264916A | Paper perforator | |
| CA238462A | Device for securing card or label on filing unit | |
| CA334581A | Filing device | |
| CA284900A | Binder |