Invention Grant
US08672183B2 Collapsible bottle and cover 有权
可折叠的瓶子和盖子

Collapsible bottle and cover
Abstract:
In combination with a collapsible container with a dimension that varies as the container collapses from a full position to an empty position, the bottle cover with a sight opening for viewing of indicia on the bottle to provide an indication as to the extent the bottle is full or empty.
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