Title:
Remotely directing catheters and tools
United States Patent 3058473


Inventors:
Whitchead, Alfred E.
Application Number:
US85560159A
Publication Date:
10/16/1962
Filing Date:
11/27/1959
Assignee:
Whitchead, Alfred E.
Primary Class:
Other Classes:
73/864, 73/864.01, 73/864.31, 73/864.73, 239/588
International Classes:
E21F11/00
View Patent Images:
US Patent References:
2975785Optical viewing instrument1961-03-21
2616429Draining probe1952-11-04
2498692Gastrointestinal tube1950-02-28
Foreign References:
GB548462A1942-10-12