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Roofing material
United States Patent 1920931
Inventors:
Dozier, Finley
Publication Date:
08/01/1933
View Patent Images:
Download PDF 1920931
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Assignee:
PARAFFINE CO INC
Primary Class:
428/570
Other Classes:
52/315, 428/674, 428/328, 428/927, 428/624
International Classes:
D21J1/08
;
D21J1/00