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Throwing device
专利权人:
Roger Sievers
发明人:
Roger Sievers
申请号:
US14258855
公开号:
US09303942B2
申请日:
2014.04.22
申请国别(地区):
US
年份:
2016
代理人:
摘要:
Throwing devices are described. In one embodiment, a throwing device includes a spring-actuated throwing arm wherein a cup member is disposed at an end of the throwing arm and is adapted to allow a user to pick up an object to be thrown by the throwing device without touching the object. In another embodiment, a throwing device includes a tension adjustment member, by which a user can adjust the tension applied to the launching spring, thereby adjusting the launch range of the throwing device.
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中国工程科技知识中心
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