Title:
Rolling screen
Document Type and Number:
United States Patent 1550237
Inventors:
Beckman, August H.
Plaque It!
Sponsored by: Flash of Genius |
Publication Date:
08/18/1925
View Patent Images:
Images are available in PDF form when logged in. To view PDFs, Login or
Create Account (Free!)
Referenced by:
Export Citation:
Assignee:
Beckman, August H.
Primary Class:
Other Classes:
160/395, 160/277, 296/143, 160/391, 160/23.100, 160/320, 160/267.100, 160/273.100, 160/271
International Classes:
E06B9/54; E06B9/52