United States Patent 3146072
Inventors:
Freddie, Morgan Rubie
Publication Date:
08/25/1964
Assignee:
Freddie, Morgan Rubie
Other Classes:
422/176, 219/267, 392/488, 392/491, 60/303, 422/174, 219/261
International Classes:
F01N3/08; F01N3/26; F01N3/38