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Rectitude Holdings Ltd is principally involved in the provision of safety equipment, encompassing essential items such as personal protective clothing, hand gloves, safety footwear, and personal fall arrest systems (a system used to arrest an employee in a fall from a walking-working surface, usually consisting of a body harness, anchorage, and connector), portable fire extinguishers and traffic products such as rubber speed humps, wheel stops and wheel chocks.
Research Frontiers Inc is engaged in the development and marketing of technology and devices to control the flow of light. The company develops and licenses its patented suspended particle device light-control technology to other companies that manufacture and market the SPD-Smart chemical emulsion, the light-control film made from the chemical emulsion, the light-control panels made by laminating the film, electronics to power end-products incorporating the film, or lamination services for, and the end-products. The company's revenue source comes from the licensing of technology.