New design rigid and soft vacuum extractor cups: a preliminary comparison of traction forces
G. JUSTUS HOFMEYR; LAWRENCE GOBETZ; ERNST W. W. SONNENDECKER; MARTIN J. TURNER
- 作者G. JUSTUS HOFMEYR; LAWRENCE GOBETZ; ERNST W. W. SONNENDECKER; MARTIN J. TURNER
- 卷第97卷
- 期第8期
- 印刷ISSN1470-0328
- 电子ISSN1471-0528
- 文件大小687.46KB
- 发表时间1990
- DOI10.1111/j.1471-0528.1990.tb16238.x
- 页码681-685