How to tell the year of manufacture of Agilent 6410?

I have a few different serial numbers and trying to figure out which is the newest

 

1.  SG 11 281 102

 

2.  US  90 311 189

 

3.  US 73 510 497

 

4.  US 10 131 001

Parents
  • ---------------------------------------------------------------------------

                                            Year of Manufacture

    ---------------------------------------------------------------------------

    1.  SG 11 281 102                2011   *newest

     

    2.  US  90 311 189               2009

     

    3.  US 73 510 497                2007

     

    4.  US 10 131 001                2010

    ---------------------------------------------------------------------------

    *** Before 2010, 1st number.  After 2010, 1st & 2nd number ***

Reply
  • ---------------------------------------------------------------------------

                                            Year of Manufacture

    ---------------------------------------------------------------------------

    1.  SG 11 281 102                2011   *newest

     

    2.  US  90 311 189               2009

     

    3.  US 73 510 497                2007

     

    4.  US 10 131 001                2010

    ---------------------------------------------------------------------------

    *** Before 2010, 1st number.  After 2010, 1st & 2nd number ***

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