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3M Innovative Properties Assigned Patent for Curing Lights with Homogenous Light Patch
Copyright © Targeted News Service, 2018
2018-03-10
ALEXANDRIA, Va., March 10 -- 3M Innovative Properties, St. Paul, Minnesota, has been assigned a patent (9,907,636) developed by three co-inventors for "curing lights with homogenous light patch." The co-inventors are Zhisheng Yun, Woodbury, Minnesota, Rudolf Schmid, Eichenau, Germany, and James L. Graham II, Woodbury, Minnesota. The abstract states: "A light irradiation device that emits a light patch of uniform intensity. The device may be a dental light wand. The device has a light source, a l . . .

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