Inventions and innovations :

1998.

Malang, Virgilio L.
Inventions and innovations : a glimpse of Filipino legacy / Malang, Virgilio L. - Manila : Goodwill Bookstores, 1998. - xviii, 309 pages

9789718822012


Inventions and patents

= BED18633 c. 1 = BED16980 c. 2
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