ONE PIECE STETHOSCOPE DIAPHRAGM
- 专利权人:
- 发明人:
- JOHNSON MARY JO,KELLER JOSEPH P,SITZ DEAN
- 申请号：
- IN201747006428
- 公开号：
- IN201747006428A
- 申请日:
- 2017.02.23
- 申请国别(地区):
- IN
- 年份:
- 2017
- 代理人:
- 摘要：
- The present invention is a diaphragm including a disc formed from a first material and a rim formed from a second material. The disc and the rim are a unitary piece. The rim has a Shore A durometer hardness of between about 40 and 110.
- 来源网站：
- 中国工程科技知识中心
