Title:
Combination scraper and tube reforming device and method of using same
United States Patent 3039530


Inventors:
Condra, Elmo L.
Application Number:
US83613859A
Publication Date:
06/19/1962
Filing Date:
08/26/1959
Assignee:
Condra, Elmo L.
Primary Class:
Other Classes:
72/479, 166/173
International Classes:
E21B37/02
View Patent Images:
US Patent References:
2712853Paraffin remover1955-07-12
2695673Well casing scraping tool1954-11-30
2667931Casing scraper1954-02-02
2627925Casing scraper1953-02-10
2218766Pipe cutting tool1940-10-22
1770207Paraffin scraper for oil wells1930-07-08
1604736Casing swage1926-10-26
1422762Casing swage1922-07-11
1010954N/A1911-12-05
0684363N/A1901-10-08