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[AD] (GOULD ROBERT KINDADE); | Type: | Patent literature | Publication No.: | FR2285171
[A] (TOA NENRYO KOGYO KK [JP]); | Type: | Patent literature | Publication No.: | FR2343505
[A] (JOHNSON MATTHEY CO LTD [GB]); | Type: | Patent literature | Publication No.: | US4066409
[AD] (FINE DAVID H); | Type: | Patent literature | Publication No.: | GB2001621
[A] (POLLUTION PREVENTING RES); | Type: | Patent literature | Publication No.: | EP0107923
[A] (ENGELHARD CORP [US]) |