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Timeline for all types of items produced by
Sir-Tech Soft.

YearItems
19811
19823
19832
19842
19853
19861
19876
19881
19903
19921
19931
19964
19971
20011

30 items with a valid date were considered for this timeline (96.77% of the total)
1 item with an invalid date.

Help us in our quest to find exact dates for:

199?: 1 item.