| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 2 | |
| #3 | France | 1 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Turning | |
| #3 | Sawing | |
| #4 | Grinding or polishing devices | |
| #5 | Accessories for machine tools | |
| #6 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Davis Emery E | 8 |
| #2 | Koeln Christian C | 3 |
| #3 | Kilzer James E | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US1740986A | Expansion reamer | |
| US1881665A | Expansion boring tool | |
| US1746381A | Boring tool | |
| US1745207A | Cylinder-reboring machine | |
| US1768962A | Expansion boring tool | |
| US1698394A | Boring device | |
| US1613174A | Device for stoning cutters | |
| GB205396A | Cutters for boring and like bars | |
| US1674890A | Expansion reamer | |
| US1619855A | Expansion reamer | |
| US1538174A | Holding device | |
| CA282331A | Expansible boring tool | |
| CA276826A | Expansion reamer |