LIQUID DETECTING ARTICLE AND METHOD OF MAKING SAME

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专利权人:

LLC.;DRY SEE

发明人:

Marc D. Etchells,Walter G. Mayfield

申请号：

US16749648

公开号：

US20200155357A1

申请日:

2020.01.22

申请国别(地区):

US

年份:

2020

代理人:

摘要：

A liquid indicating article is disclosed. It can have a single layer, but generally will have at least two layers bonded together, wherein a visible layer masks a second colored layer and the visible layer becomes at least semitransparent when wet.

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中国工程科技知识中心

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http://www.ckcest.cn/home/