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电话被盗用,困扰着千千万万的电话用户。现已成功研究出多功电话防盗器。国家已授予实用新型专利专利号ZL93.248090X,并通过国家电话机质量监督检验中心检验合
Phone theft, plagued thousands of phone users. Has successfully developed a multi-function telephone anti-theft device. The state has granted utility model patent number ZL93.248090X, and through the National Telephone Quality Supervision and Inspection Center for testing