List of patentees to whom patents were issued by the Philippines Patent Office during the period 1948-1961 with a subject index to patents

List of patentees to whom patents were issued by the Philippines Patent Office during the period 1948-1961 with a subject index to patents

ग्रंथसूची विवरण
मुख्य लेखक: Dumangas, Marianita Luspo 1948-
स्वरूप: पुस्तक
भाषा:English
विषय:
Patents > Philippines.