Provision of patent information: a national patent office perspective
1995 ◽
Vol 17
(2)
◽
pp. 115-123
◽
1992 ◽
Vol 14
(3)
◽
pp. 211
◽
1992 ◽
Vol 14
(3)
◽
pp. 190-194
◽
1996 ◽
Vol 18
(1)
◽
pp. 3-7
◽
2005 ◽
Vol 27
(4)
◽
pp. 287-291
◽
2006 ◽
Vol 28
(2)
◽
pp. 132-135
◽