This drawing signed by Robert A. Edberg. JVM NOTE: An application for a U. S. Patent on this invention was finally filed on January 4, 1971, and U. S. Patent No. 3,692,982, was granted to John V. McMillin on September 9, 1972 - more than four years after the idea was conceived and proven, showing the snail's pace of U. S. Patent protection! Later yet, I was awarded the princely sum of $200 by WLC, Harvey J. Brudner, as an honorarium for this Patent Disclosure. Refer to MS File name: 1973_01_30_Brudner LETTER to JVM_Patent Awards_ORG.doc in this same 1968_07_15&18 JVM DICAD - above folder for access to the file