What does PTB stand for?
PTB stands for "Phys Techn Bundesanst"
How to abbreviate "Phys Techn Bundesanst"?
"Phys Techn Bundesanst" can be abbreviated as PTB
What is the meaning of PTB abbreviation?
The meaning of PTB abbreviation is "Phys Techn Bundesanst"
What does PTB mean?
PTB as abbreviation means "Phys Techn Bundesanst"
