The date code could also be 2007/June/18.
I'm thinking it's this. I came across one that has a date code of 10032. I could see it being made in 2010, possible on March 2nd, or maybe the other numbers refer to weeks like the DIC's date code. It would be interesting to see how the manufacturers have changed over the years, too. All of the 9-5 SIDs I've seen in person were made by Autoliv, but I've seen a label from one made by Nokia, and one from Actia Nordic.
The ACC date codes are even stranger. They're an alphanumeric code, like 1F26. I was doing some swapping of ACC components yesterday so I'd have the ACC display that works the best in the housing that has the least worn buttons. I couldn't make heads or tails of the date format, and strangely enough there were huge differences in the circuit boards over the years. I have a couple that are just packed with electronic components, and some that look pretty sparse in comparison.