Keysor, Harold Clark books & textbook
Papers on Helical Compression Springs: Bulletin of the Virginia Polytechnic Institute, V34, No. 15, September, 1941
Keysor, Harold Clark Pletta, Dan Henry Maher, F J
Literary Licensing, LLC /2013-07-20 Paperback / 36 Pages
isbn-10: 1258767465 / isbn-13: 9781258767464