| item | description | category | filter | more on... |
| PTPK | Patty Peak Seismic Station, Patty Peak, Alaska | Edu./Geology |
<<
|
|
| PTPK | Pennsylvania Turnpike | Other/Transportation |
<<
|
|
| PTPK | Planter Tank Pump Kit | Business/Products |
<<
|
|
| PTPK | Protein-Tyrosine Phosphatase - Kappa | Medical/Human Genome |
<<
|
|