What does PTF stand for?
PTF stands for "Precise Time and Frequency"
How to abbreviate "Precise Time and Frequency"?
"Precise Time and Frequency" can be abbreviated as PTF
What is the meaning of PTF abbreviation?
The meaning of PTF abbreviation is "Precise Time and Frequency"
What does PTF mean?
PTF as abbreviation means "Precise Time and Frequency"
