FIELD: shipbuilding. SUBSTANCE: loose material is used as filler; hollow mat of boat hull is made for communication with vacuum pump fitted on the boat. EFFECT: enhanced reliability. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR REPAIR OF HOLES IN SHIP'S HULL | 1990 |
|
RU2005642C1 |
| FLOWER POT | 1992 |
|
RU2011335C1 |
| GRIPPER | 1992 |
|
RU2035291C1 |
| PIPE | 1992 |
|
RU2014540C1 |
| PERISTALTIC ELECTROMAGNETIC INDUCTION PROPULSIVE DEVICE FOR AQUATIC TOYS | 1991 |
|
RU2068726C1 |
| DISPERSION EQUIPMENT | 1992 |
|
RU2048880C1 |
| FLYWHEEL WITH ALTERNATIVE INERTIA MOMENT | 1991 |
|
RU2023913C1 |
| SPINNING TOP | 1991 |
|
RU2008061C1 |
| DRIVE | 1990 |
|
RU2008522C1 |
| PUZZLE | 1992 |
|
RU2009675C1 |
