TY - GEN AU - V J Pezoldt AU - J J Persensky C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1977-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.77-1298 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1977 TI - Power lawn mowers ::ease of pull ER -