Inventor
CEINTREY CLAUDE G
FR3 patents
Patents
3 patentsUS4237207ADec 2, 1980
Photochromic composition containing indoline spirobenzopyran and copolymer of PVC and imaged product thereof
CELLOPHANE SA13 citations67
US4171980AOct 23, 1979
Photosensitive compositions and recording materials and processes utilizing same
CELLOPHANE SA15 citations67
US4172725AOct 30, 1979
Photosensitive compositions and recording materials and processes utilizing same
CELLOPHANE SA1 citations45