| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | Switzerland | 2 | |
| #3 | Germany | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Austria | 1 | |
| #6 | Canada | 1 | |
| #7 | Denmark | 1 | |
| #8 | Spain | 1 | |
| #9 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Textiles and paper | |
| #5 | Audio-visual technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Barron W | 3 |
| #2 | Barron William J | 3 |
| #3 | William John Barron | 2 |
| #4 | Barron John N | 1 |
| #5 | John Barron William | 1 |
| #6 | Meinardi John F | 1 |
| #7 | Barron William John | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1350450A | Engraving machines | |
| US3716668A | Engraving machine | |
| US3552002A | Method of producing printed circuit boards | |
| US3495110A | Welding device | |
| US3372618A | Lead screw drive mechanism | |
| US3327400A | Method and apparatus for relief paste-up process | |
| ES275591A3 | Electronic recorder machine (Machine-translation by Google Translate, not legally binding) | |
| US3183745A | Thrust bearing means for electronic engraving machines |