1. Carter, B.C.: Improvements in or Relating to Damping of Oscillation-Checking Devices. 337466 (1929)
2. Sarazin, R.R.R.: Means Adapted to Reduce the Torsional Oscillations of Crankshafts. 2079226 (1931)
3. Chilton, R.: Pendulum Counterweight. 2112984 (1935)
4. Mahé, H., Renault, A., Thomas, O.: Dispositif D’amortissement Pendulaire [Pendular Damping Device]. FR 3055037 (2018)
5. Mahé, H., Renault, A., Thomas, O.: Dispositif D’amortissement Pendulaire [Pendular Damping Device]. FR 3055038 (2018)