How to back up large objects?

I can't seem to figure out how to back up the large ogjects I have in my
DB.

Here's the situation:

I insert a large object (via PHP) into my DB.  I also insert a record
into a table that uses the OID of the LO I inserted.  I later expect to
pull the record out of the table, get the OID I stored of the LO, and
then export that object.

The question is:  How do I backup the database including the large
objects?  pg_dump doesn't seem to help me here.  The only way I have
seen to access a large object is teh /lo_export command in psql.

so what is the common usage of large objects?

My main goal is a method of backing up a database that conists of a
table that stores the OID of the large objects, the large objects
themselves, and then restoring all of this to a new DB (whether it's on
the same machine or a different one).  MInd you I have to have the
large objects maintain their origianl OID.

Any input appreciated.

Chris

--
"I think your slogan 'Liberty or Death' is splendid, and whichever one
you decide on will be all right with me."  - Alexander Woollcott