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Product USA. E.

PATENT ASSIGNEE'S COUNTRY USA
UPDATE 08.99
PATENT ASSIGNEE This data is not available for free
PATENT CLAIMS Alkaline developer soln in presence of an electron transfer agent comprising pyrazolidone substituted in the 1-positiob by aromatic group substituted in ortho position by a hydrolyzable -O-CO-Me group & wherein said pyrazolidone accelerates development & is deactivated after period of time in said soln
PATENT PHOTOCOPY Available on request

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