TY - GEN AU - DR Miller AU - IH Fullmer C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1923-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.LCIRC.108 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1923 TI - Letter Circular 108::lead errors in commercial screw threads, taps, and dies ER -