TY - GEN AU - Brunetti, Cledo AU - Curtis, Roger W C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1947-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.CIRC.468 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1947 TI - Circular of the Bureau of Standards no. 468::printed circuit techniques ER -