Our Trademark

Our trademark is a Diamond B; every five years we add a line to it, so you can determine when the item was produced.
 
 
 
First five years
(1978-1983)
logo
Second five years
(1983-1988)
logo1
Third Five Years
(1988-1993)
logo2
Fourth Five Years
(1993-1998)
logo3
Fifth Five Years
(1998-2003)
logo4
Sixth Five Years
(2003-2008)
logo5
Seventh Five Years
(2008-present)
Mark, 2008-present