Title:
Watermarked paper
United States Patent 1687140
Inventors:
Anton, Pleyer
Publication Date:
10/09/1928
View Patent Images:
Export Citation:
Assignee:
Ebart, Geb
Primary Class:
Other Classes:
162/188, 162/134, 162/130, 162/140
International Classes:
D21F1/44; D21F1/00