(Source: Wall Street Journal Online) In four years, Service-drone.de GmbH has emerged as a promising player here in the rapidly expanding commercial-drone industry. The 20-employee startup has sold more than 400 unmanned aircraft to private-sector companies and now is pitching its fourth-generation device. Over the same period, Seattle-based Applewhite Aero has … [Read more...] about Regulation Clips Wings of U.S. Drone Makers