| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | United States | 3 | |
| #3 | Austria | 2 | |
| #4 | Belgium | 2 | |
| #5 | United Kingdom | 2 | |
| #6 | Japan | 2 | |
| #7 | Switzerland | 1 | |
| #8 | Hungary | 1 | |
| #9 | Netherlands | 1 | |
| #10 | Poland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Transport | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | Mining | |
| #3 | Marine propulsion | |
| #4 | Unspecified technologies | |
| #5 | Ships |
| # | Name | Total Patents |
|---|---|---|
| #1 | Legrand Marie Ghislain Joseph | 4 |
| #2 | Legrand Marie G J | 4 |
| #3 | Marii Gisureen Yosefu Regurand | 1 |
| #4 | Marii Gishiyurein Yosefu Regur | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4290652A | Machine for the cutting of rocks in underground works | |
| US4306513A | Weather-vane steering-device and coupling device for use in such weather-vane steering device | |
| NL7806836A | Boat rudder steering gear - has trim surface pivot forward of rudder pivot, which is operated after trim surface rotation | |
| CH622058A5 | Machine for digging galleries or tunnels | |
| DE2709367A1 | IMPROVED SHORT FRONT EXTRACTION MACHINE FOR PITCHING |