FIGS 12 and 13 illustrate an alternate form of the present invention, in which {HEAD ~ a key lock} and a combination lock are disposed side by side, forming into {TAIL ~ a combined lock device} and, a sliding board is alternatively covered on the key lock or the combination lock 
are forming into
FIGS 12 and 13 illustrate an alternate form of the present invention , in which { HEAD ~ a key lock } and a combination lock are disposed side by side , forming into { TAIL ~ a combined lock device } and , a sliding board is alternatively covered on the key lock or the combination lock
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