Online patents trade marks and service marks databases 1992
Sibley, J F
Online patents trade marks and service marks databases 1992 - London: ASLIB, 1991 - 70p.
0-85142-289-6
Patents trade marks
User aids
D 681.3.022(088.83) / N1
Online patents trade marks and service marks databases 1992 - London: ASLIB, 1991 - 70p.
0-85142-289-6
Patents trade marks
User aids
D 681.3.022(088.83) / N1