| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 14 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Thread cutting | |
| #3 | Unspecified technologies | |
| #4 | Turning | |
| #5 | Accessories for machine tools | |
| #6 | Gearing | |
| #7 | Kitchen equipment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Shafer Arthur A | 4 |
| #2 | Boehm Rudolph A | 4 |
| #3 | Rickert August A | 3 |
| #4 | Johnson John Emil | 2 |
| #5 | Shafer George E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1978060A | Work feeding device | |
| US1978059A | Cutting-off machine | |
| US1936274A | Die | |
| US1560462A | Self opening and closing threading-die holder | |
| US1560487A | Automatic screw-threading machine | |
| US1470683A | Screw-cutting machine | |
| US1415013A | Collapsible tap | |
| US1345710A | Collapsible tap | |
| US1345744A | Collapsible tap | |
| US1345709A | Threading-die mechanism | |
| US1244084A | Tapping-machine. | |
| US1153311A | Drive for machine-tools. | |
| US1153310A | Tapping-machine. | |
| US1172558A | Ice-cutter. |