Corporate Assignee
Printing
Intaglio
Bed-and-cylinder machines
Corporate Assignee
active
No affiliations
.delta.-indanthrone blue pigment and manufacturing method theref
2,5-disubstituted pyrazine derivatives, pyrimidine derivatives,
2,7-dihydroxynaphthalene based epoxy resin, intermediate thereof
3- or 4-glycosyloxybenzopyran derivative and antiallergic agent
4-methylene-1,3-dioxolanes as cross-linking agents
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