Incomming signal alert.
SIG stands for Special Interest Group.
If you mean what does the acronym "SIG" stand for, it means "Schweizerische Industrie Gesellschaft," which is German for "Swiss Industrial Company."
If made in Germany, there will be a date code. If made in the US, you will have to call SIG
849476049guo4
advertisment code
The acronym AD stands for Anno Domini.
Advantage
Domini
ad code means authorised dealer code for foreign exchange issued by reserve bank of india
BC is "before Christ" and AD "anno domini"
arun