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Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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Kiefer, Gerhard - Kiefer, Steven K. Kiefer, Gerhard (2)Kiefer, Gerry D.Kiefer, GuentherKiefer, GundolfKiefer, GundulaKiefer, Gunther (2)Kiefer, Hans (8)Kiefer, Hans-Friedrich (2)Kiefer, HansruediKiefer, Hans W.Kiefer, Hans WalterKiefer, Heather L.B.Kiefer, HeikoKiefer, Heinrich Johannes GustavKiefer, HeinzKiefer, Heinz E.Kiefer, Helen C.Kiefer, HenryKiefer, HerbertKiefer, HermannKiefer, Ingo (3)Kiefer, JackKiefer, Jack K.Kiefer, JakobKiefer, James (3)Kiefer, James A. (2)Kiefer, James E.Kiefer, James R. (2)Kiefer, Jamieson K.Kiefer, Jean-Claude (4)Kiefer, Jean-Daniel (2)Kiefer, JeffreyKiefer, Jeffrey N.Kiefer, Jesse
Kiefer, Jesse J. (2)Kiefer, Jesse JohnKiefer, Joachim (5)Kiefer, Joachim R.Kiefer, JochenKiefer, JohannesKiefer, Johann M.Kiefer, JohnKiefer, John E.Kiefer, John H.Kiefer, John StevenKiefer, Jon J.Kiefer, JorgKiefer, JosefKiefer, Joseph H.Kiefer, Joseph M.Kiefer, Judy E.Kiefer, JurgKiefer, JurgenKiefer, KarlKiefer, Karl F. (5)Kiefer, Keith A.Kiefer, Kenneth J.Kiefer, Kenneth P.Kiefer, Kevin W. (3)Kiefer, Klaus (2)Kiefer, Klaus-JurgenKiefer, Laura A.Kiefer, LawrenceKiefer, LeoKiefer, LudwigKiefer, Lynn E.Kiefer, ManfredKiefer, Margit
Kiefer, MarkusKiefer, MartinKiefer, MatthewKIEFER, MatthewKiefer, Matthias (2)Kiefer, MercedesKiefer, Michael (4)KIEFER, MICHAELKiefer, Michael C. (2)KIEFER, MICHAEL C.Kiefer, MikeKiefer, Nancy R.Kiefer, Natalie R.Kiefer, Natalie RobinKiefer, Patrick J.Kiefer, PeterKiefer, RainerKiefer, Randolf (2)Kiefer, Raymond D.Kiefer, Raymond J.Kiefer, Renaud (2)Kiefer, Richard E.Kiefer, Richard J. (2)KIEFER, Robert A.Kiefer, RolfKiefer, RubenKiefer, Rudolf (2)Kiefer, ShelleyKiefer, SilvanKiefer, Stefan (2)KIEFER, STEFANKiefer, Steven K.
