| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Civil engineering | |
| #4 | Packaging and shipping | |
| #5 | Mechanical elements | |
| #6 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Rolling metal | |
| #2 | Unspecified technologies | |
| #3 | Safety devices | |
| #4 | Unspecified technologies | |
| #5 | Sawing | |
| #6 | Pipes | |
| #7 | Handling thin material | |
| #8 | Platform constructions | |
| #9 | Domestic washing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Blecker William M | 7 |
| #2 | Leahy William P | 2 |
| #3 | Slentz Albertus O | 2 |
| #4 | Schlafly Julius H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1819764A | Continuous strip mill | |
| US1819763A | Continuous sheet mill | |
| US1787537A | Suction cleaner | |
| US1771392A | Continuous strip and sheet mill | |
| US1671221A | Doubler | |
| US1646989A | Sheet-shearing apparatus | |
| US1605642A | Automatic sheet separator | |
| US1667412A | Continuous-sheet-rolling apparatus | |
| US898510A | Connection for culvert-sections. | |
| US790004A | Mine trap-door. | |
| US732903A | Mine-curtain. | |
| CA324348A | Suction cleaner |