P
PatentIndex
Search
Landscape
Sign in
Inventor
PRACHT INGE
CH
2 patents
Patents
2 patents
US4559147A
Dec 17, 1985
Optical immersion oil
HOFFMANN LA ROCHE
7 citations
71
US4493533A
Jan 15, 1985
Immersion oil containing aliphatic thio compounds
HOFFMANN LA ROCHE
16 citations
68