Helmet
United States Patent 1434607

Inventors:
Gilson, James H.
Publication Date:
11/07/1922
View Patent Images:
Download PDF 1434607 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Gilson, James H.
Primary Class:
132/274
Other Classes:
2/174, D29/102
International Classes:
A42B1/04