Continuous retaining ring adapted for radial expansion
United States Patent 3077811

Inventors:
Moore, Ernest S.
Publication Date:
02/19/1963
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Assignee:
NAT RES COUNCIL
Primary Class:
Other Classes:
416/220A, 292/256.650, 416/193A, 29/522.100, 29/889.210, 416/220R, 220/320
International Classes:
F01D5/30; F01D5/00