Apparatus for dissolving silicate of soda
United States Patent 1763845
Inventors:
Edgerton, Lloyd B.
Publication Date:
06/17/1930
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Assignee:
PHILADELPHIA QUARTZ CO
Primary Class:
Other Classes:
422/281, 501/12, 65/22, 423/332
International Classes:
C01B33/32; C01B33/00