Title:
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United States Patent 3119588

Inventors:
Keats, John B.
Publication Date:
01/28/1964
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Assignee:
Keats, John B.
Primary Class:
248/158
Other Classes:
256/1, D20/41, 40/607.100, 256/64, 116/173, 40/617, 248/519, 482/17, 248/910, 116/63P, 40/607.040
International Classes:
E01F9/012; E01F13/02; G09F17/00; E01F9/011; E01F13/00
Other References:
None