Hydraulic fluid
United States Patent 2636861

Inventors:
Watson, Forrest J.
Publication Date:
04/28/1953
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Assignee:
Shell, Dev
Primary Class:
252/78.500
Other Classes:
508/304, 252/78.300, 528/388, 508/439
US Patent References:
2549270Lubricant and hydraulic fluid composition
2566623Hydraulic fluid composition