Seal for underground passage, and storage system embodying same
United States Patent 2855757

Inventors:
Meade, Leonard P.
Publication Date:
10/14/1958
View Patent Images:
Download PDF 2855757 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
PHILLIPS PETROLEUM CO
Primary Class:
405/53
Other Classes:
73/40.50R, 299/19, 405/133, 405/144, 52/169.600
International Classes:
B65G5/00; E21F17/16; E21F17/00
US Patent References:
2459227Underground reservoir for the storage of liquefied gases
2659209Underground liquid storage facility and the method of selecting and preparing the same
2697539Box with handle cover fastening means
Foreign References:
DK68070A