Invention Grant
US07673407B2 Document and engineering drawing holder/protector 失效
文件和工程图纸持有人/保护者

Document and engineering drawing holder/protector
Abstract:
A carrier and protective case are particularly useful for storing and viewing large format documents, which can be spooled together or inserted in a series of spooled transparent sleeves. The web like spools is stored on two spaced apart rollers that are in rotary engagement with opposing halves of the case, and nested within the case or a frame when the opposing halves are folded together.
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Information query
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