Number | Date | Country | Kind |
---|---|---|---|
37278/73 | Aug 1973 | UK | |
203740 | Jun 1974 | CA |
Number | Name | Date | Kind |
---|---|---|---|
1944009 | Hommer | Jan 1934 | |
1963173 | Morin | Jun 1934 | |
3288131 | Garland | Nov 1966 | |
3522799 | Gauthier | Aug 1970 | |
3522800 | Lesser | Aug 1970 | |
3570475 | Weinstein | Mar 1971 | |
3572326 | Jensen | Mar 1971 |
Entry |
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"A Padded Brain Retractor", Portnoy & Croissant, vol. 1, Surgical Neurology 243, July 1973. |
Sales Literature by Heyer-Schulte Corp., Feb. 1974. |
Downs Surgical Group Sales Brochure 1973. |