Ai Changsheng

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煤气泄漏报警自动开窗通风及GSM呼救系统装置
Release time:2019-01-25  Hits:

Affilication of Author(s):机械工程学院
Type of Patent:实用新型
Service Invention or Not:no
Application Date:2010-08-16
Authorization Date:2011-06-22

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