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US Patent: 1,756,799
Casing Cover and Tool Holder for Wells
Patentee:
Frederick W. Sadler (exact or similar names) - Oklahoma City, Oklahoma County, OK

USPTO Classifications:
175/423

Tool Categories:
industrial tools : tool holders
specialty machines : well drilling machines

Assignees:
Frederick W. Sadler - Oklahoma City, Oklahoma County, OK
Barbara E. Turney - Oklahoma City, Oklahoma County, OK

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: May 26, 1928
Granted: Apr. 29, 1930

Patent Pictures:
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