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US09307818B2 Backpack collapsible coolers 有权
背包可折叠冷却器

Backpack collapsible coolers
摘要:
A collapsible backpack cooler includes a base, a collapsible portion, a back portion, and one or more straps configured for use by a user in securing the collapsible backpack cooler to their back. The collapsible backpack cooler is configured to allow the collapsible backpack cooler to transition between an expanded configuration, and a collapsed configuration having a reduced volume as compared to the expanded configuration.
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