United States Patent 3234614
Inventors:
Plummer, Walter A.
Publication Date:
02/15/1966
Assignee:
Plummer, Walter A.
International Classes:
A44B19/16; A44B19/26; A44B19/10; A44B19/24
Foreign References:
| FR1018167A | | | | |
| FR1106141A | | | | |
| DE304700C | | | | |
| GB685008A | | | | |
| GB744730A | | | | |
| GB800169A | | | | |
| IT375235B | | | | |