ROBERT H. DUFFIELD

City:

COEURD D'ALENE, Idaho

Country:

United States

Published Applications:

Last publication date:

2012-11-22

Recent patent applications by DUFFIELD ROBERT H.

ROBERT H. DUFFIELD from COEURD D'ALENE, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2012-11-22

US20120293434A1

Physics

Touch alphabet and communication system

InventorID:

3298398 ⎘