TY  - RPRT
TI  - Bidirectional step torque filter with zero backlash characteristic Patent
AU  - Baker, R. L.
AU  - Veillette, L. J.
AU  - Williams, S. R.
PY  - 1967
UR  - https://ntrs.nasa.gov/citations/19710012269
ID  - 19710012269
ER  -