Title:
CONTROLLABLE IRRADIATION DEVICE
United States Patent 3426206


Inventors:
Smith, Gordon R.
Application Number:
US3426206DA
Publication Date:
02/04/1969
Filing Date:
09/13/1965
Assignee:
MINNESOTA MINING & MFG
Primary Class:
Other Classes:
137/88, 250/383, 250/435, 976/DIG.441
International Classes:
G21K5/02; (IPC1-7): G21H5/00
View Patent Images:
US Patent References:
2884538Radio-active gaseous gauging source1959-04-28
2781309Radiation system1957-02-12
Foreign References:
GB749513A1956-05-30