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

书目详细资料
主要作者: Dumangas, Marianita Luspo 1948-
格式: 图书
语言:English
主题:
Patents > Philippines.