Inventor
NEUMANN WIELAND
DE4 patents
Patents
4 patentsUS5599028AFeb 4, 1997
Seal between two elements, especially between concrete pipes
FORSHEDA AB27 citations88
US5826887AOct 27, 1998
Sealing device
FORSHEDA AB33 citations86
US6089618AJul 18, 2000
Sealing device for pipes
FORSHEDA AB15 citations70
US5507504AApr 16, 1996
Sealing device with c-shaped lips and central projection
FORSHEDA AB8 citations70