Number | Name | Date | Kind |
---|---|---|---|
3788326 | Jacobs | Jan 1974 | |
4036210 | Campbell et al. | Jul 1977 | |
4193406 | Jinotti | Mar 1980 |
Number | Date | Country |
---|---|---|
152622 | Oct 1937 | ATX |
349387 | Mar 1922 | DE2 |
545218 | Feb 1932 | DE2 |
Entry |
---|
Arhelger, "The Advantages of Tracheotomy and the Use of a New Tracheal Tube in the Management of Intratracheal Aspiration", Surgery, vol. 29, No. 2, pp. 260-266, Feb. 1951. |