Normal view MARC view ISBD view

Improved rock drill lubricating oil form - 0 Govt. of India, The Pate 0

Subjects--Topical Terms:
Oils

Subjects--Index Terms: 151270 ASCERTAINS DESCRIBES DRILL FOLLOWING FORMULATIONS IMPROVED INVENTION LUBRICATING MANNER NATURE OIL PARTICULARLY PERFORMED ROCK SPECIFICATION

Universal Decimal Class. No.: 0