| 摘要 |
A snap-on safety closure or cap is provided for containers of pills, liquids and the like which container cannot readily be opened by small children uninstructed in its use but can be easily opened by an adult. The cap snaps in place on the container and thereafter cannot be lifted off the container except by rotating the cap with respect to the container until a cam on the inside of the cap engages a cam on the rim of the container upon which action the rim of the cap becomes distorted, lifts up and allows the fingernail and part of the finger tip to be inserted under the cap's edge to lift the cap and snap it off.
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