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Bridge for use at a grave pit during interment
专利权人:
Nelson Skinner
发明人:
Nelson Skinner
申请号:
US15667625
公开号:
US10072438B2
申请日:
2017.08.02
申请国别(地区):
US
年份:
2018
代理人:
摘要:
A grave bridge has a first horizontal frame member and a second horizontal frame member, each horizontal frame member telescopically adjustable at least one plank interposed between the first and second horizontal frame members, the at least one plank secured to each frame member, and wherein the at least one plank has an extension frame longitudinally extendable from underneath a platform of the at least one plank and a plurality of jacks for elevating the first and second horizontal frame members, the jacks placed at opposing ends of each horizontal frame member.
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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