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矿山井下灾害无电光纤维振动呼救装置
Release Time:2019-04-15| Hits:
Title:矿山井下灾害无电光纤维振动呼救装置
Institution:控制科学与工程学院
Type of Patent:Utility models
Application Number:200820022115.0
Number of Inventors:1
Service Invention or Not:No
Application Date:2008-05-09
Publication Date:2009-03-04
Authorization Date:2009-03-04
Release Time:2019-04-15
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