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Hanging pot water indicator
专利权人:
John Anga
发明人:
John Anga
申请号:
US13573381
公开号:
US08973518B2
申请日:
2012.09.13
申请国别(地区):
US
年份:
2015
代理人:
摘要:
A hanging pot water indicator having a hollow tubular spring housing, a dust protector on the upper end of the tubular housing, the dust protector having a fastening collar fitting around the upper end of the tubular housing, a hollow tubular sliding sleeve, having an interior diameter greater than the exterior diameter of the tubular housing, and being telescopically slidable in respect thereof, a lower flared portion on the lower end of the sleeve, an opening in the dust protector, a coiled extension spring within the tubular housing and the sleeve, an upper wire extension portion extending from the upper end of the spring passing through the opening in the dust protector, and defining an upper hook, and a lower wire extension extending from the lower end of the spring, and formed to define a hook.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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