Swimmer's mask
United States Patent 2317237

Inventors:
Wilen, Charles H.
Publication Date:
04/20/1943
View Patent Images:
Download PDF 2317237 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Wilen, Charles H.
Primary Class:
128/201.110
Other Classes:
D24/110.200
International Classes:
B63C11/16; B63C11/02