| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 38 | |
| #2 | United States | 3 | |
| #3 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Machine tools | |
| #3 | Measurement | |
| #4 | Consumer goods | |
| #5 | Machines | |
| #6 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Spectacles | |
| #2 | Grinding or polishing devices | |
| #3 | Measuring distances | |
| #4 | Goods for writing upon | |
| #5 | Testing of structures | |
| #6 | Shaping of plastics | |
| #7 | Cleaning | |
| #8 | Measuring length, angles and areas | |
| #9 | Manufacturing processes | |
| #10 | Writing or drawing tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Cretin-Maitenaz Bernard | 6 |
| #2 | Delorme Marcel | 2 |
| #3 | Pierre Gardissard | 1 |
| #4 | Jeanmaire | 1 |
| #5 | Gardissard Pierre | 1 |
| #6 | Jacques Beasse | 1 |
| #7 | Bernard Cretin-Maitenaz | 1 |
| #8 | Marcel Delorme | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3025761A | Spectacle mountings | |
| US2915856A | Machine for grinding an optical surface in a piece of refractive material | |
| US2597312A | Spectacles | |
| DE429239C | Field measuring device |