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Extract from the Register of European Patents

EP Citations: EP0468822

Cited inSearch
Type:Patent literature
Publication No.:GB975583  [X]
 (MALDON CAVENDISH HARLEY);
Type:Patent literature
Publication No.:US2846663  [X]
 (HEEHLER ARTHUR C, et al);
Type:Patent literature
Publication No.:US2740103  [X]
 (GOSSWILLER EARL W);
Type:Patent literature
Publication No.:US4104615  [X]
 (HUNTER EVEREST C)