Cited in | International search | Type: | Patent literature | Publication No.: | DE29701558U
[A] (HARTMANN PAUL AG [DE]) [A] 1 * figure 1; claim 1 *; | Type: | Patent literature | Publication No.: | BE729022
[A] (WALRAVE) [A] 1 * figures 4,5; claim 5 *; | Type: | Patent literature | Publication No.: | DE2246752
[A] (WINDMOELLER & HOELSCHER) [A] 1 |