What does 3SR stand for?
3SR stands for "Internal Delivery Teletype"
How to abbreviate "Internal Delivery Teletype"?
"Internal Delivery Teletype" can be abbreviated as 3SR
What is the meaning of 3SR abbreviation?
The meaning of 3SR abbreviation is "Internal Delivery Teletype"
What does 3SR mean?
3SR as abbreviation means "Internal Delivery Teletype"