| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Mechanical elements | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Chairs and beds | |
| #2 | Nails | |
| #3 | Unspecified technologies | |
| #4 | Furniture for children |
| # | Name | Total Patents |
|---|---|---|
| #1 | Duvall William J | 6 |
| #2 | Alexander Izen | 3 |
| #3 | Jones Benjamin H | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US1597024A | Mattress clamp | |
| US1611899A | Bed-corner fastener | |
| US1576316A | Extension or pull-over bed | |
| US1544821A | Folding bed | |
| US1624222A | Metal folding bed | |
| US1476499A | Corner fastener for beds | |
| US1423664A | Bed corner | |
| US1423665A | Bed corner | |
| US1423663A | Crib | |
| US1385174A | Spring-mattress and support therefor | |
| US1385173A | Corner-fastening for beds |