000 00478nam a22001817c 4500
001 4907
003 OSt
005 20190814090759.0
007 t|
008 190702s2004 xxu||||| |||| 00| 0 d
110 1 _aUnited States Patent and Trademark Office <Washington>
245 0 0 _aIndex to the U.S. Patent Classification System
250 _aDec. 2003
264 1 _aWashington,
_c2004
300 _aGetr. Zählung
650 _aUSA
_94716
650 _aPatentklassifikation
_93471
999 _c2745
_d2745