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United States Patent 2037989

Inventors:
Macklanburg, Louis A.
Publication Date:
04/21/1936
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Assignee:
Macklanburg, Louis A.
Primary Class:
206/384
Other Classes:
222/95, 222/107, 222/102, 222/262, 222/103
International Classes:
F16N37/02; F16N37/00