1) Button on older phones 2) Common string that omits Q 3) Dbls 4) Former telephonic trio 5) Letters at 7, on some phones 6) Letters on older phones 7) Old phone trio 8) Phone 7 9) Phone letters 10) Phone letters, once 11) Phone pad letters 12) Phone-pad sequence 13) Pre-cell telephone trio 14) Price reporting system 
Praseodymium(II) Sulfide Molar mass: 172.97265
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Pennsylvania Radiological Society
Performing Right Society. Body that collects royalties in respect of music played by radio stations for artists and composers
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