History change record, 21 speaker, Version no – BeStar BMS50-11-50H7.5 LF User Manual
Page 7: Approved drawn, Date, Change items
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6. History change record
version
No.
A
Before
Approved
Drawn
After
张秀琴
Date
汪凤声
Change Items
2012/04/15
BMS50-11-50H7.5 LF
王 平
王 平
张秀琴
2012-04-15
王 平
2012-04-15
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