SAFETY DEVICE FOR ROAD TRACTOR AND ITS SEMI-TRAILER
FR2450426A1
Solar energy trap panel - covered with retractable polyethylene film, to keep the exposed face of the trap plane and smooth
FR2434282A1
Wind or water power generator - uses venturi to increase velocity of flow at paddle wheel
FR2384445A2
Liq. feeder for potted plant - uses pot with base hole to receive wick and obturator which are displaceable by de-potting device
FR2365948A2
Plant nutrient supply appts. - has reservoir with valve controlling outlet flow to maintain film at bottom of porous pot with annular well contg. rooting medium
FR2297809A2
Liquid supply and control appts. for pot plant - has U-section reservoir with opening to give ventilation
FR2284843A1
Rapid drying of components after immersion or spraying - using infra red heaters and reflectors, plus vibration
