STETHOSCOPE DIAPHRAGM
- 专利权人:
- 发明人:
- SITZ DEAN,KELLER JOSEPH P,JOHNSON MARY JO
- 申请号：
- IN201747025938
- 公开号：
- IN201747025938A
- 申请日:
- 2017.07.21
- 申请国别(地区):
- IN
- 年份:
- 2017
- 代理人:
- 摘要：
- The present invention is a stethoscope diaphragm including a disc and a rim. The rim includes a plurality of features extending from an inner circumference of the rim.
- 来源网站：
- 中国工程科技知识中心
