Here is a little info I found about the Type B papers mentioned earier. This is an excerpt written by Robert Chapman from an answer to a question about Type B papers and its process in Photographic Processes-The Chemistry of Photography Vol. II, from about 1987:

"Type B is the name given older papers based on Agfa technology. The color couplers in these papers are immobilized by adding long-chain chemical ballasts to the coupler molecules rather than by incorporating the couplers in oil droplets. Oil-droplet immobilization is used on all type A materials. To my knowledge, Kodak was the first to use this principle. Type A developers generally contain benzyl alcohol (but this has been changing in recent years) to assist developer permeation of the oil droplets."

He then goes on to give process formulas. The developing agents were CD-2 or CD-4.