HYBRID POWER PLANT FOR MULTIPROPELLER ROTARY-WING AIRCRAFT CONTAINING IMPROVED DC/AC CONVERTER
HYBRID DRIVE TRANSMISSION UNIT AND METHOD FOR OPERATION OF A HYBRID DRIVE VEHICLE
CONSTRUCTION OF FLOORING FOR COVERING THE UNDERGROUND SPACE OF PASSENGER CONVEYOR
SEALING GELS, METHOD OF THEIR PRODUCTION AND THEIR USE IN SEALING COMPOUNDS FOR SELF-SEALING TIRES
SYSTEM (OPTIONS) AND METHOD TO CONTROL VEHICLE GEAR SHIFT IN CRUISE CONTROL MODE
NEW REINFORCEMENT MATERIALS, ELASTOMER COMPOSITIONS AND VEHICLE WHEEL TIRES CONTAINING THEM