Apparatus and method for making mineral wool
United States Patent 2150040

Inventors:
Seigle, William R.
Bailey, Townshend
Publication Date:
03/07/1939
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Assignee:
Johns, Manville
Primary Class:
65/449
Other Classes:
65/447, 425/81.100, 65/530, 19/304, 65/465
International Classes:
C03B37/06; C03B37/01