EPROM identification

[WEG1192 at aol.com]

Can anyone tell me what the following EPROM part number is? I have a bunch of 
MEMCALs from 3.1L V-6s 1227730 ECMs and they don't seem to program with my 
Pocket Programmer. I called Intronics but they are out for some show. The 
particular EPROM is from a Corvette MEMCAL, mask AXCN. It has three rows of 
numbers. 

014
045915
AD9050B

I have quite a few EPROMs like this in which only the last series of numbers 
changes. Any help would be appreciated.

Thanks,

JW
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