Manufacture of mineral wool
United States Patent 2382290

Inventors:
Callander, Marshall E.
Publication Date:
08/14/1945
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Assignee:
Callander, Marshall E.
Primary Class:
65/447
Other Classes:
264/112, 425/81.100, 65/454, 65/468
International Classes:
C03B37/06; C03B37/01