Filter
United States Patent 1781964

Inventors:
Thomas, George F.
Herb, Otto J.
Publication Date:
11/18/1930
View Patent Images:
Download PDF 1781964 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
ALEMITE CORP
Primary Class:
210/94
Other Classes:
210/445, 210/443, 210/497.010, 210/418
International Classes:
B01D35/00