United States Patent 3143819
Inventors:
Stevens Jr., Frederick F.
Publication Date:
08/11/1964
Assignee:
Stevens Jr., Frederick F.
International Classes:
F41A3/40; F41A5/18; F41A9/65; F41A9/67; F41A17/32; F41A17/38; F41A19/48; F41A3/00; F41A5/00; F41A9/00; F41A17/00; F41A19/00