Title:
Coilable partition with chalk board
Document Type and Number:
United States Patent 3090426

Inventors:
Carlo, Clarence E.
Publication Date:
05/21/1963
View Patent Images:
Images are available in PDF form when logged in. To view PDFs, Login  or  Create Account (Free!)
Referenced by:
View patents that cite this patent
Export Citation:
Click for automatic bibliography generation
Assignee:
DUBUQUE PRODUCTS INC
Primary Class:
160/25
Other Classes:
160/180, 160/133, 160/40, 434/412
International Classes:
E06B9/08
US Patent References:
0419810
0636787
0705045
1370961Blackboard
2370794Fabric venetian blind
2651852Blackboard supporting structure
2838853Chalkboard having curved writing surface
2934139Side coiling articulated partition and drive mechanism therefor
2945535Foldable partition
Foreign References:
GB190008857A




<- Previous Patent (Multiple wall sight ...)   |   Next Patent (Upwardly acting door...) ->