| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Measurement | |
| #3 | Machines | |
| #4 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Punching metal | |
| #2 | Testing of structures | |
| #3 | Unspecified technologies | |
| #4 | Handling thin material | |
| #5 | Soldering, welding and flame cutting | |
| #6 | Perforating | |
| #7 | Cutting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mcdonald Charles D | 9 |
| #2 | Mcdonald Charles B | 6 |
| #3 | Ennes Charles E | 1 |
| #4 | Mccullough John E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1408617A | Can-end-feeding mechanism | |
| US1169333A | Metal-shearing machine. | |
| US1110810A | Metal-shearing machine. | |
| CA147087A | Metal working machine | |
| US1039565A | Metal-working machine. | |
| US1025199A | Can-testing machine. | |
| US1013796A | Can-testing machine. | |
| US970092A | Automatic die-press. | |
| US945573A | Can-testing machine. | |
| US938165A | Can-testing machine. | |
| US877358A | Can-heading machine. | |
| US864325A | Can-forming machine. | |
| US834069A | Can-soldering machine. |