Well-drilling device.

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US993882A Well-drilling device. 失效

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Patent Title: Well-drilling device.
Application No.: US1910592470

Application Date: 1910-11-15
Publication No.: US993882A

Publication Date: 1911-05-30
Inventor: SANDERSON RAY R
Applicant: SANDERSON RAY R
Assignee: Ray R Sanderson
Current Assignee: Ray R Sanderson
Priority: US1910592470 1910-11-15

Well-drilling device.

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