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Drones subject of next library event

A drone in mid-flight. Expert Alvin Alejandro will present a talk about drones during a July 16 presentation at the Martinez Library. (ALVIN ALEJANDRO / Courtesy)

By DAVID SCHOLZ Martinez Tribune MARTINEZ, Calif. – An introduction into the ins and outs of operating drones will be the focus of one of three talks that are on tap at the Martinez Public Library as July rolls on and attentions turn to August. Alvin Alejandro, owner and operator ...

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