| 摘要 |
A delivery container with a signaling system to indicate delivery of materials. The delivery container signaling system is comprised of a push mechanism within the container attached to a signal plate within a transparent base extending across the bottom of the delivery container and upward over the rear of the delivery container. The movement of the push mechanism rearward within the delivery container causes the enclosed signal plate rearward and upward across the container rear when delivered materials are pushed into the container against the push mechanism.
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