Abstract: An improved design for men's underwear is described. Comfort for the wearer is increased by preventing the underwear from bunching up in the buttocks and preventing irritation of the scrotum area due to underwear seams rubbing against skin. Features that provide such comfort include a seamless crotch area made of microfiber, cotton leggings and elastic material bands attached to the back section of the underwear to prevent wedging of the underwear.

Abstract: Fish-breeding apparatus (10), which comprises a frame, supporting one or a plurality of breeding cages (11) and provided with hollow buoyancy elements (17), and at least one device for controlling the buoyancy of the apparatus by filling, totally or partially, the buoyancy elements with water and emptying them of the water, totally or partially, whenever desired. The buoyancy elements are emptied of water by replacing the water with air. The buoyancy elements are such that when they are empty of water to a predetermined extent, the entire apparatus floats, even when it is fully charged. The frame has depending legs (17), so that even in its lowermost position the bottoms of the breeding cage will be spaced from the sea bed.

Abstract: Fish-breeding apparatus (10), which comprisies a frame, supporting one or a plurality of breeding cages (11) and provided with hollow buoyancy elements (17), and means for controlling the buoyancy of the apparatus by filling, totally or partially, the buoyancy elements with water and emptying them of the water, totally or partially, whenever desired. The buoyancy elements are emptied of water by replacing the water with air. The buoyancy elements are such that when they are empty of water to a predetermined extent, the entire apparatus floats, even when it is fully charged. The frame has depending legs (17), so that even in its lowermost position the bottoms of the breeding cage will be spaced from the sea bed.

Abstract: Salt mushroom cutting apparatus for removing salt mushrooms from a water body, comprises a vessel floatable on the water body, and a helical cutter carried by the vessel forwardly of its bow and extending transversely thereof for pulverizing the salt bodies as the vessel is propelled forwardly through the water body. The helical cutter is wider than the vessel and includes a drum rotated about its longitudinal axis, and a helical array of cutter tips projecting from the outer surface of the drum. The propelling means includes at least one pair of spuds on the opposite sides of the vessel, a vertical drive for lowering the spuds into the water bed, and a horizontal drive for driving the vessel forwardly with respect to the spuds when anchored in the water bed.