| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Canada | 5 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Transport | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Ladders | |
| #2 | Wheelchairs and sledges | |
| #3 | Motor vehicles | |
| #4 | Spraying devices | |
| #5 | Fire-fighting | |
| #6 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Seagrave Frederic S | 17 |
| Publication | Filing date | Title |
|---|---|---|
| US1425220A | Propelling attachment for children's vehicles | |
| US1419312A | Propelling attachment for children's vehicles | |
| US930095A | Nozzle. | |
| US724513A | Aerial ladder. | |
| US743936A | Side frame for ladder-trucks. | |
| US691879A | Aerial ladder. | |
| US677282A | Aerial ladder. | |
| US691878A | Aerial ladder | |
| US666442A | Ladder. | |
| US666441A | Ladder. | |
| US669711A | Trussed ladder. | |
| CA61433A | Ladder | |
| CA60396A | Extension ladder coupling | |
| US632541A | Vehicle or truck side frame. | |
| CA209053A | Propelling attachment for children's vehicles | |
| CA25621A | Ladder | |
| CA201858A | Propelling device for children's vehicles |