| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 25 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Tools for connecting or disengaging | |
| #3 | Turning | |
| #4 | Accessories for machine tools | |
| #5 | Sawing | |
| #6 | Milling | |
| #7 | Cutting | |
| #8 | Metal-working | |
| #9 | Grinding or polishing devices | |
| #10 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Armstrong John | 5 |
| #2 | Welter Sebastian J | 4 |
| #3 | Rhinevault Harry A | 4 |
| #4 | Welter Samuel | 3 |
| #5 | Fletcher Joseph C | 2 |
| #6 | Butler Jack M | 2 |
| #7 | Armstrong John O | 2 |
| #8 | Armstrong Lennox F | 2 |
| #9 | Armstrong Jr William T | 1 |
| #10 | Robinson William S | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4833831A | Apparatus and method for sizing and finishing fixed jaw openings of open-ended wrenches | |
| US3695126A | Indexable turret tool post | |
| US3052462A | Swivel pad construction for c clamps and the like | |
| US2887760A | Cutting tool | |
| US2705441A | Hold-down clamp | |
| US2211039A | Thread cutting tool holder | |
| US2193984A | Reversible ratchet wrench | |
| US2190585A | C clamp | |
| US2162359A | Lock for socket wrenches, etc. | |
| US2078475A | Tool holder | |
| US2008367A | Detent | |
| US1732549A | Wrench for tool holders | |
| US1676210A | Pipe wrench | |
| US1584347A | Tool holder | |
| US1653326A | Chain pipe vise | |
| US1613577A | Die-cutting machine | |
| US1621226A | Milling cutter | |
| US1495751A | Adjustable wrench | |
| US1343257A | Tool-holder | |
| US1252031A | Planer-tool holder. |