Ozmo Devices, provider of technology that allows users to create wireless personal area networks for battery-operated devices at low prices, has raised $3.75 million toward an anticipated $10 million round of equity, according to PE Hub. Part of this sum came from the conversion of $750,000 in promissory notes acquired in June. The Palo Alto, Calif., company previously raised $12.5 million. It is backed by Granite Ventures, Intel Capital and Tallwood Venture Capital.

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