| 摘要 |
A packaging unit for use in the marketing of compact alarm systems including a flat supporting sheet, a flat panel smaller than the supporting sheet and pivotally coupled to the supporting sheet along one edge, at least one alarm actuating device provided on said panel adjacent an edge opposite to that coupled to the supporting sheet, at least one actuation response device provided on the flat sheet adjacent the alarm actuating device, at least one alarm device provided on the supporting sheet and coupled to the actuation response device such that the alarm device is actuated by the actuation response device and a means for fixing the alarm device and the actuation response device to the supporting sheet and for fixing the actuating device to the front flat panel.
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