Title:
Roof sump
United States Patent 1538924


Inventors:
Boosey, Edward W. N.
Application Number:
US68970124A
Publication Date:
05/26/1925
Filing Date:
01/31/1924
Assignee:
Boosey, Edward W. N.
Primary Class:
Other Classes:
210/295, 210/489, 285/42
International Classes:
E04D13/04
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