Shoe sole having portions of different elasticity in combination with safety boot
United States Patent 3165841
US Patent References:
/1110353.html
- - 1110353

Tread for boots or shoes
- - 1507844

Rubber footwear
- - 2426211

Heat insulated, gusset-type, water-proof footwear
- - 2897610


Inventors:
Rollman, Heinz W.
Publication Date:
01/19/1965
View Patent Images:
Assignee:
RO SEARCH INC
Primary Class:
Other Classes:
36/31, 36/30R, 36/77R
International Classes:
A43B7/32
Foreign References:
FR1016468A
FR1193781A
FR1260816A
GB332115A
GB416167A
GB722803A