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Improved means for protecting bank cashiers, post office officials and the like, from attack
Improved means for protecting bank cashiers, post office officials and the like, from attack
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机译:改进了保护银行收银员,邮局官员等免受攻击的手段
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摘要
The release of a counter top by an official when attacked by a raider closes contacts which may bring into operation a device for spraying powder or liquid at all the exits from the building occupied by the official to facilitate the identification of anyone leaving the building.
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