Arrayit Corporation @arrayit 12 Sep 2016 Arrayit signs 3-year $24.4 million patented microarray technology sales and marketing agreement with a leading laboratory services provider.
A key phrase here is "sales and marketing agreement". It could mean that the lab services provider is going to try to sell $24.4M of Arrayit's products over a 3-year period?
This other one I don't know what it means or the time period:
Arrayit Corporation @arrayit 13 Jul 2016 Arrayit signs $27.1 million microarray services agreement with top lab in Southeastern USA http://arrayit.com/Services/services.html