Visible strip screed and ground
United States Patent 1668842

Inventors:
Alvin, Dudfield
Morris, Granvill P.
Publication Date:
05/08/1928
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Assignee:
Alvin, Dudfield
Morris, Granvill P.
Primary Class:
52/366
Other Classes:
52/374
International Classes:
E04F21/04; E04F21/02