| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 11 | |
| #2 | United Kingdom | 5 | |
| #3 | United States | 2 | |
| #4 | Belgium | 1 | |
| #5 | Canada | 1 | |
| #6 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Optics | |
| #3 | Control | |
| #4 | Mechanical elements | |
| #5 | Electrical machinery and energy | |
| #6 | Machine tools | |
| #7 | Textiles and paper | |
| #8 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Toys | |
| #2 | Gearing | |
| #3 | Office furniture | |
| #4 | Special furniture | |
| #5 | Optical systems | |
| #6 | Teaching materials | |
| #7 | Unspecified technologies | |
| #8 | Dynamo-electric machines | |
| #9 | Woodworking tools | |
| #10 | Printing machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mercier Robert | 3 |
| #2 | Hoffmann Antoine | 1 |
| #3 | Martin Georges | 1 |
| #4 | Edouard Hudeley | 1 |
| #5 | Ernest Mercier Robert | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2979174A | Change speed gear for toys and reduced scale models | |
| GB867795A | Improvements in structural building elements for toys and small-sized models | |
| GB858160A | Improvements in electric motors, particularly applicable to toys | |
| GB869167A | Improved change speed gear mechanism for toys and scale models | |
| GB843802A | An improved remote-controlled toy vehicle | |
| US2945418A | Stereoscopic film strip viewer | |
| GB850618A | Improvements in or relating to stereoscopes | |
| CA906971A | Boulier pour calcul multibase |