My Google-foo isn't quite up to this.  Could anyone give me a hand?

I'm looking for a copy of a Japanese patent.  It's referenced by a
US patent (5857777):
   58-68633	Apr., 1983	JP	374/172.
Also, supposedly availble as part of
   WO 94/12940	Sep., 1994	WO

Thanks!
   Bill

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