| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 4 | |
| #3 | France | 3 | |
| #4 | Australia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Physical training equipment | |
| #2 | Nails | |
| #3 | Unspecified technologies | |
| #4 | Devices for public amusement | |
| #5 | Special furniture | |
| #6 | Unspecified technologies | |
| #7 | Ladders |
| # | Name | Total Patents |
|---|---|---|
| #1 | White Bobbie L | 8 |
| #2 | Carlin Edward T | 4 |
| #3 | Isadore Horowitz | 2 |
| #4 | Smyrni Emanuel S | 2 |
| #5 | Carlin E | 1 |
| #6 | Horowitz Isadore | 1 |
| #7 | White B | 1 |
| #8 | Quintal Duane J | 1 |
| #9 | Rowell Harold A | 1 |
| #10 | Smyrni Emmanuel S | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4018538A | Cross arm hanger support | |
| US3977642A | Support structure | |
| US3724078A | Lock joint for fabricated platform assemblies | |
| US3601397A | Play center having table, swing, slide and gymnastic bars | |
| US3487889A | Fabricated plastic step | |
| US3291522A | Play equipment seat | |
| US3261607A | Plastic swing or like seat | |
| US3260522A | Swing seat and bracket and method of assembling same | |
| CA889984A | Childrens play center | |
| CA905282A | Platform assembly |