United States Patent 3497083
Inventors:
Anderson, Victor C.
Horn, Ronald C.
Publication Date:
02/24/1970
Other Classes:
623/60, 403/291, 901/28, 464/182, 403/112, 901/36, 403/57, 138/120
International Classes:
B25J9/06; B25J18/06; B25J18/00; B25J9/00