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US Patent: 1,253,966
Process and Apparatus for Treating Drill Pipe
Patentee:
Ford W. Harris - Los Angeles, CA

USPTO Classifications:
148/566, 148/594, 266/104, 266/249

Tool Categories:
specialty machines : oilfield machinery

Assignees:
Bardeen Corp. - Los Angeles, CA

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Jan. 10, 1916
Granted: Jan. 15, 1918

Patent Pictures:
USPTO pdf tiff
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Description:
Townsend, Graham & Harris - patent attorneys

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