United States Patent 3100395
Inventors:
Morley, Thomas J.
Publication Date:
08/13/1963
Assignee:
Morley, Thomas J.
Other Classes:
374/142, 73/30.040, 73/30.020, 702/138, 374/121, 250/308, 702/137, 702/50
International Classes:
G01N23/12; G01N25/60; G01N23/02; G01N25/56