Title:
Indicating protective covers for pipe flanges and valves
United States Patent 2708896
Inventors:
Smith, Millard F.
Smith Jr., Edward S.
Publication Date:
05/24/1955
Assignee:
Smith, Millard F.
Smith Jr., Edward S.
Other Classes:
436/100, 422/56, 436/169, 116/DIG.014, 436/3, 73/40.50R, 137/377, 73/46
International Classes:
F16L59/16; F16L59/00