Lockable container, such as toy safe

作者: John F. Miroballi , Joseph V. Nuzzo

DOI:

关键词: EngineeringContainer (type theory)Front (military)AcousticsSimulationFront doorLock (firearm)

摘要: A lockable container, such as a toy safe, comprises box having an upper wall, lower back and two side walls front opening. door hinged to the is movable between closing position, in which closes opening, other positions, does not close shelf disposed within extends from walls. combination lock mounted on for locking position unlocking upon manipulation of accordance with alphanumeric characters. The has inner surface, displayed below shelf. visible, when opening closed by door, through one series open vents provided shelf, at least if illuminated another vents.

参考文章(4)
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Roland R. Gibboni, Alexander R. Toll, Electronic apparatus for teaching mathematics ,(1982)
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