List of patentees to whom patents were issued by the Philippines Patent Office during the period 1962-1966 with a subject index to patents [microform]
| Hlavní autor: | |
|---|---|
| Médium: | Visual Material |
| Jazyk: | English |
| Vydáno: |
Quezon City
Photoduplication Service, University of the Philippines Library
1977.
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| Témata: |