000			00428naa a22001577c 4500
001			21590
003			OSt
005			20190814161436.0
007			t|
008			190702s xxu||||| |||| 00| 0 d
100	1		_aVijvers, W. G.
245	0	0	_aThe international patent classification as a search tool
650			_aInternationale Patentklassifikation _92098
650			_aVorprüfung _94887
773	0		_aWPI. 12(1990),1,26-30. _wz_WPI
999			_c12468 _d12468