| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bellows Warren S | 5 |
| #2 | Edwin Carlberg August | 3 |
| #3 | Enberg Stone R | 2 |
| #4 | Verner Critchley James | 1 |
| #5 | Shedd Charles A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1643860A | Socket wrench | |
| US1635259A | Cylinder-head-lifting tool | |
| US1621499A | Ratchet wrench | |
| US1533785A | Wrench construction | |
| US1613981A | Wrench | |
| US1584208A | Brace wrench | |
| US1537529A | Tool handle | |
| US1553068A | Wrench | |
| US1613976A | Wrench | |
| US1424712A | Attachment for wrenches | |
| US1533784A | Socket wrench | |
| US1450788A | Valve-grinding tool |