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Extract from the Register of European Patents

EP Citations: EP0045807

Cited inSearch
Type:Patent literature
Publication No.:US3845880  
 [ ] (COLE M)
Cited inInternational search
Type:Patent literature
Publication No.:US1617857  [X]
 (MALLORY HARRY C);
Type:Patent literature
Publication No.:US3353700  [X]
 (KALINA BEN F);
Type:Patent literature
Publication No.:US3401826  [X]
 (ANTHONY MYRON L)