Cover image for Patents & trade marks.
Title:
Patents & trade marks.
Author:
Munn & Co. (New York, N.Y.)
Corporate Author:
Publication Information:
New York ; Washington [etc.] : Munn & Co., [1924]

©1924
Physical Description:
1 pages l., 37 pages, 2 l., 34 pages : illustrations ; 21 cm
Language:
English
Format :
Book