Title:
Writing pad
United States Patent 2608771
US Patent References:
Self-erasing memorandum pad
- - 1480920

Writing and drawing device
- - 1512827

Memorandum pad
- - 1881140


Inventors:
Ernest, Sparks
Publication Date:
09/02/1952
View Patent Images:
Download PDF 2608771 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Ernest, Sparks
Primary Class:
434/410
International Classes:
B43L1/12; B43L1/00