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Extract from the Register of European Patents

EP Citations: EP0535218

Cited inSearch
Type:Patent literature
Publication No.:JPS5949514  [XA]
Type:Non-patent literature
Publication information:[XA]  - PATENT ABSTRACTS OF JAPAN, (19840713), vol. 8, no. 151, Database accession no. (P - 286)<1588> , & JP59049514 A 19840322 (OLYMPUS KOGAKU KOGYO KK) [X] 1 * abstract * [A] 24
Cited inInternational search
Type:Patent literature
Publication No.:US3876283  [X]
 (JUDD DUANE E);
Type:Patent literature
Publication No.:US4109999  [A]
 (KIYONO YUTAKA, et al);
Type:Patent literature
Publication No.:US4657357  [A]
 (NISHIMURA SHINICHI [JP], et al);
Type:Patent literature
Publication No.:US4474023  [A]
 (MULLINS JR JAMES N [US])