U. s. security Associates was established as Advance security Engineering in 1955 in Atlanta, Georgia, to provide security guard services.
作为安全工程项目，1955年美国安全协会于佐治亚州亚特兰大市正式成立，主要提供保安服务。
U. s. security Associates was established as Advance security Engineering in 1955 in Atlanta, Georgia, to provide security guard services.
作为安全工程项目，1955年美国安全协会于佐治亚州亚特兰大市正式成立，主要提供保安服务。
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