Title:
Grating
United States Patent 1346426


Inventors:
Scherbner, Paul H. E.
Application Number:
US30008419A
Publication Date:
07/13/1920
Filing Date:
05/27/1919
Assignee:
Scherbner, Paul H. E.
Primary Class:
Other Classes:
29/509, 29/515, 29/897.15, 52/668, 105/457
International Classes:
E04C2/42
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