Inventors: Rockwood T. Roberts, III
Assignee: C. N. Burman Co.
Primary Examiner: L. Heyman
Patent number: 5222806
Filing date: Jun 4, 1992
Issue date: Jun 29, 1993
http://www.google.com/patents?id=nkR8AAAAEBAJ&printsec=description&zoom=4#v=onepage&q&f=false
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