Insulating material
United States Patent 1523702

Inventors:
Moeller, William J.
Kabbes, Henry J.
Publication Date:
01/20/1925
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Assignee:
Moeller, William J.
Kabbes, Henry J.
Primary Class:
138/141
Other Classes:
156/209, 428/153
International Classes:
F16L59/02; F16L59/07; F16L59/06