Inventions, patents, and their management
Berle, Alf K.
Inventions, patents, and their management - London D. Van nostrand company, 1959 - x, 602p.
Inventions. patents, management
658.002 / BER
Inventions, patents, and their management - London D. Van nostrand company, 1959 - x, 602p.
Inventions. patents, management
658.002 / BER