First Two numbers are the Year -The second Two are the Month
BudgetAirSupply.com
By the second set of #'s
the date is on the data plate just about the service valves on the outside condenser. the serial number is how you can read the manufacture date. for example, serial number 9805100565, is read as manufactured in may 1998. this is the for all goodman and amana air conditioning units.
The Goodman serial number 03055135068 indicates that the unit was manufactured in 2003, specifically in the 35th week of that year. Goodman serial numbers typically follow a format where the first four digits represent the year and week of manufacture. This information can be useful for determining the age of the HVAC system and for planning maintenance or potential replacement.
The serial numbers on a Abu Garcia reel are read by viewing the label placed on the bottom of the real. It lists an alpha numeric serial number as well as the model number and date of manufacture.
I don't believe the Remington 512, 511 or 510 have serial numbers
Serial#
To read Mossberg serial numbers, locate the serial number usually found on the receiver or barrel of the firearm. Mossberg serial numbers typically consist of a combination of letters and numbers that can indicate the model and year of manufacture. The first letter often represents the year of production, while the remaining numbers usually signify the specific production sequence. For precise date decoding, consult the manufacturer's resources or a dedicated serial number lookup guide.
Yvonne Goodman has written: 'Presenting numbers'
1969 = serial start by 932 and 1970 by 032
The serial number of the Goodman model VHC42C2C indicates that it was manufactured in the year 2004. The first two digits of the serial number typically represent the year of production. In this case, "04" corresponds to 2004.
If you mean a serial number on some product, it depends on what the product is. Each company can makes serial numbers mean anything they want it too.
It was manufactured Dec. of 1993.