+D75 marks a specific point of reference, often defining a particular [Class](/wiki/class) or generation within a broader system. It embodies a distinct set of characteristics, crucial for its designated function and often linked to a core [Standard](/wiki/standard) or protocol.
+## See also
+- [Model](/wiki/model)
+- [System](/wiki/system)
+- [Designation](/wiki/designation)
... 1 more lines