China's intellectual property office approved Wangli Security & Surveillance Product's (SHA:605268) patent for a clutch reversing mechanism and lock body, valid for 20 years, according to a Wednesday filing with the Shanghai bourse.
China's intellectual property office approved Wangli Security & Surveillance Product's (SHA:605268) patent for a clutch reversing mechanism and lock body, valid for 20 years, according to a Wednesday filing with the Shanghai bourse.
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