United States Patent 2953145
Inventors:
Moss, Charles W.
Henry, Stribley
Publication Date:
09/20/1960
Assignee:
Moss, Charles W.
Henry, Stribley
Other Classes:
135/126, D21/834, 135/901, 135/117
International Classes:
E04H15/28; E04H15/00
Foreign References:
| IT442987B | | | | |
| GB732709A | | | | |
| FR859919A | | | | |