Inventions, patents and trade marks
Meinhardt, Peter
Inventions, patents and trade marks - London Gower 1971 - xvii, 397p. : ill.
071610069x
PATENT LAWS AND LEGISLATION--GREAT BRITAIN
TRADEMARKS--LAW AND LEGISLATION
T 339 Mei
Inventions, patents and trade marks - London Gower 1971 - xvii, 397p. : ill.
071610069x
PATENT LAWS AND LEGISLATION--GREAT BRITAIN
TRADEMARKS--LAW AND LEGISLATION
T 339 Mei