P.F. 15A peach tree

P.F. 17 peach tree

P.F. 23 peach tree

P.F. 28-007 peach tree origin of variety

P.R.B. screen

P.sub.2 O.sub.5 -V.sub.2 O.sub.5 -PbO glass which reduces arcing

P.sub.2 O.sub.5 recovery and phosphoric acid purification

P.sub.2x receptor DNA and protein sequence

P.sub.4 gas generator using the alkali metal polyphosphide MP.su

P.sup.+ Buried layer for I.sup.2 L isolation by ion implantation

P.sup.+ N Gallium phosphide photodiodes

P.sup.1, P.sup.4 -dithio-P.sup.2 -P.sup.3 -monochloromethylene 5

P.T.O. securement method

P.V.C. Compositions for extrusion moulding

P.V.C. swivel beach chair

P/M titanium composite casting

P/N junction device having porous emitter

P/R process control patch uniformity analyzer

P0438, a new calcium-regulated promoter

P1 notched write head with minimum overmilled p1 and p2