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Title:
Putt direction finding method
United States Patent 3293755
Inventors:
Cronwell, Ralph H.
Application Number:
US36088564A
Publication Date:
12/27/1966
Filing Date:
04/20/1964
Assignee:
Cronwell, Ralph H.
Primary Class:
Other Classes:
33/301, 33/402, 434/252, 473/404, 473/409
International Classes:
A63B57/00
View Patent Images:
US Patent References:
3182401Golfing aid1965-05-11
2694865Clinometer1954-11-23
1498631Combined clinometer and computing instrument1924-06-24
1373336Plumb or level device1921-03-29
1132349N/A1915-03-16
0458012N/A1891-08-18