Reading ISF/IMS1.0 Catalogs

Fellow ObsPy users and developers,

Not too long ago (about S-Files) I asked something similar, and I thank you for all valuable input. I've been trying to look for available packages/applications to read ISF/IMS1.0 catalogs/bulletins. In particular if there is one with the ability to import catalogs/bulletins, in that format, and convert them to another format readable by ObsPy (such as QuakeML), that would be optimal for my needs.
Anyone knows of such devices, or must I write something of my own, which might be incorporated into ObsPy later on?
All suggestions will be gladly accepted.

Thank you all in advance,

Emanuel Antunes

Seismology Laboratory
Instituto Superior Técnico