Shoe having heel core molded therein
United States Patent 3363343

Inventors:
Bourassa, Robert L.
Winkler, Julius G.
Publication Date:
01/16/1968
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Assignee:
INTERNAT VULCANIZING CORP
Primary Class:
36/32R
Other Classes:
36/34R
International Classes:
A43B9/20; A43B21/24; A43B9/00; A43B21/00
US Patent References:
2918703Method of producing hollow plastic heels
3109701Method for producing shoes with molded soles of rubber or plastic material
3116566Injection molded shoe bottom and shoe having same