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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.
Mexico Equity and Income Fund Inc is a closed-end, non-diversified management investment company. It maintains an investment objective of long-term capital appreciation through investments in securities, primarily equity, listed on the Mexican Stock Exchange. The company provides a vehicle to investors who wish to invest in Mexican companies through a managed non-diversified portfolio as part of their overall investment program.