Adjustable headband for industrial headgear
United States Patent 2419661
US Patent References:
Welder's mask
- - 1874872


Inventors:
Staaf, Werner I.
Publication Date:
04/29/1947
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Assignee:
Staaf, Werner I.
Primary Class:
2/8.100
Other Classes:
362/106
International Classes:
A61F9/02