Qiabi Rachida
Quinn Colin D.
R. C. Plast A/s
Rabanus Kurt
Randall David J.
Rangarajan Ravi
Rau Eberhard
Rautenstrauch William
Realisations Ultrasoniques
Reber Justin
Rehbein Hartmut
Reid Melville R.
Reiffel Isadore
Reliable Machine Works
Remer Peter
Renold Adolph
Renzulli Francesco
Renzulli Piero
Richardson Kent Max
Robbiati Giandaniele