Extract from the Register of European Patents

EP Citations: EP0342140

Cited inSearch
Type:Patent literature
Publication No.:DE3520894  [X]
 ;
Type:Patent literature
Publication No.:US4591840  [A]
Type:Non-patent literature
Publication information:[A]  - RESEARCH DISCLOSURE, no. 276, April 1987, page 204, disclosure no. 27632; "Surrogate calendar keeper (calendar server)"