Taiwan Patent No. 168022

U.S. Patent No.6,341,513B1

Japan Patent No.3073644

Germany Patent No. NR20010136.6

China Patent No. ZL0023485.2 & ZL 01 3 01158.8　?

Available for selecting electronic or mechanical combination number code.

Combined with key locks which lock mechanical & electronic combination locks or lock mechanical combination locks singly.

Visual (LED light) and sound signals.