| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 29 | |
| #2 | United Kingdom | 3 | |
| #3 | United States | 2 | |
| #4 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Soldering, welding and flame cutting | |
| #2 | Making metal sheets | |
| #3 | Special electric heating or lighting | |
| #4 | Forging | |
| #5 | Grinding or polishing devices | |
| #6 | Electric switches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Richard Mack | 2 |
| #2 | Mack Richard | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB263783A | Improvements in or relating to electric seam welding machines | |
| GB230093A | Improvements in or relating to electric welding machines | |
| US1663137A | Electric spot-welding machine | |
| US1636676A | Electric welding apparatus | |
| GB157922A | Electric welding |