United States Patent 3087215
Inventors:
Tworek, Thaddeus J.
Snyder, George M.
Publication Date:
04/30/1963
Assignee:
SNAPPY BUTTON INC
Other Classes:
24/114.900, D11/226
International Classes:
A44B1/16
Foreign References:
| FR943829A | | | | |
| FR1038451A | | | | |
| GB431236A | | | | |
| GB554552A | | | | |