How to find out about patents
Newby, Frank
How to find out about patents - Oxford: Pergamon Press, 1967 - ix, 177p.
Patents
British patent
D 03(026):608.1 / K7
How to find out about patents - Oxford: Pergamon Press, 1967 - ix, 177p.
Patents
British patent
D 03(026):608.1 / K7