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United States Patent 1444223

Inventors:
Tuomi, Uno E.
Publication Date:
02/06/1923
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Assignee:
Tuomi, Uno E.
Primary Class:
160/95
Other Classes:
16/364, 160/92, 49/371, 16/DIG.023, 16/341, 49/252
International Classes:
E06B3/50; E06B3/32