PATCH03A.     psf3 - Postscript print filter system, Patch03a/4 
PATCH03B.     psf3 - Postscript print filter system, Patch03b/4 
PATCH03C.     psf3 - Postscript print filter system, Patch03c/4 
PATCH03D.     psf3 - Postscript print filter system, Patch03d/4