Title:
Well surveying device
United States Patent 2534632


Inventors:
Smith, Alonzo L.
Application Number:
US1774148A
Publication Date:
12/19/1950
Filing Date:
03/29/1948
Assignee:
Smith, Alonzo L.
Primary Class:
Other Classes:
33/501.03, 324/221
International Classes:
E21B47/08; G01V3/20
View Patent Images: