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Extract from the Register of European Patents

EP Citations: EP0975445

Cited inInternational search
Type:Patent literature
Publication No.:US2074213  [Y]
 (DEEM KATHERINE V) [Y] 1-3 * the whole document *;
Type:Patent literature
Publication No.:FR1565474  [Y]
 (SOCIÉTÉ DE CANALISATIONS, CURAGE ET ASSAINISSEMENT (S.O.C.C.A.)) [Y] 1-3 * the whole document *;
Type:Patent literature
Publication No.:NL6804149  [A]
 (N.V. INGENIEURSBUREAU VOOR SYSTEMEN EN OCTROOIEN "SPANSTAAL") [A] 1,2* page 2, line 34 - page 3, line 8; figure . *;
Type:Patent literature
Publication No.:DE3427371  [DA]
 (WENDLER KLAUS DIETER) [DA] 1,2 * abstract * * page 5, line 1 - page 6, line 5; figure - *