| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Brazil | 10 | |
| #2 | United Kingdom | 7 | |
| #3 | Canada | 4 | |
| #4 | United States | 4 | |
| #5 | Italy | 2 | |
| #6 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Packaging and shipping | |
| #5 | Control | |
| #6 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Punching metal | |
| #2 | Unspecified technologies | |
| #3 | Pistons and sealings | |
| #4 | Springs | |
| #5 | Transport or storage devices | |
| #6 | Gearing | |
| #7 | Clutches and brakes | |
| #8 | Forging | |
| #9 | Systems controlling non-electric variables | |
| #10 | Mixing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wallis B | 17 |
| Publication | Filing date | Title |
|---|---|---|
| US3738503A | Safety overload device for transfer machines | |
| US3746184A | Safety retract mechanism | |
| GB1391595A | Introducing predetermined quantities of liquid vapour into a gas or vapour stream | |
| CA937096A | Safety retract mechanism | |
| US3756425A | Transfer device | |
| US3731821A | Article transfer device |