| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 3 | |
| #2 | Canada | 2 | |
| #3 | Germany | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Machine tools | |
| #3 | Foods and drinks |
| # | Technology | |
|---|---|---|
| #1 | Working stone | |
| #2 | Accessories for machine tools | |
| #3 | Unspecified technologies | |
| #4 | Workshop equipment | |
| #5 | Unspecified technologies | |
| #6 | Meat processing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schuman Albert | 7 |
| #2 | Albert Schuman | 3 |
| #3 | Dahl Leif A | 1 |
| #4 | Roberts Albert W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA954419A | Concrete cutting hand saw and method for loading saw blade onto same | |
| US3464655A | Concrete core drill | |
| GB1167971A | Improvements in or relating to Cutting Concrete and Like Structures. | |
| US2912924A | Meat product shaping apparatus | |
| CA904622A | Concrete core drill |