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United States Patent 1553241

Inventors:
Hickey, William B.
Publication Date:
09/08/1925
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Assignee:
Hickey, William B.
Primary Class:
224/615
Other Classes:
224/581, 224/621, 383/76, 383/41, 224/584
International Classes:
A01D46/22; A01D46/00