P-dioxene synthesis

P-guanidinophenol alkyl ether salts as reagents for...

P-hydroxybenzaldehyde polyvinyl acetals as colloid binding...

P-isobutoxy-benzaldehyde thiosemicarbazone

P-n junction and method

P-n junction device and method of making the same

P-n junction device and method of making the same (local...

P-n junction formation by thermal oxidation

P-n junction rectifier employing partially reduced titanium...

P-n junction semiconductor units and method of making the same

P-n junction transistor

P-n-mono and di substituted amino-hydroxyalkylbenzoates and...

P-nitro dihydrocinnamic acid derivative

P-nn-di-(2-chloroethyl)-aminophenoxy-alkanoic acids and...

P-nn-di-(2-chloroethyl)-aminophenylbutyrates

P-oxazinylmethylbenzodioxane and processes for their...

P-phenylene diamine photographic development agents

P-phenylenediamine developer containing alkylacylamidoethyl...

P-phenylenediamine developer containing n-alkyl-acetamido...

P-phenylenediamine gasoline stabilizers and compositions...