Inventing and patenting in the Philippines /
Conanan, Virgil
Inventing and patenting in the Philippines / Virgil Conanan. - 1st ed. - ix, 261p.; 22cm.
Inventions.
Patents.
INVENTIONS AND PATENTS
608 / C743
Inventing and patenting in the Philippines / Virgil Conanan. - 1st ed. - ix, 261p.; 22cm.
Inventions.
Patents.
INVENTIONS AND PATENTS
608 / C743