Description:
Patent for "new and useful Improvements in Drill-Supports, of which the following is a specification. This invention relates to drilling apparatus, and more particularly to an apparatus of this character for use in coal or other mines for boring or drilling holes for blasting charges and other purposes" (lines 6-13).
Date:
November 23, 1915
Creator:
Williams, Benjamin F. & Mayfield, James W.
This dialog allows you to filter your current search.
Each of the Partners listed note their name and the number of records that will be limited down to if you choose that option.
This dialog allows you to filter your current search.
Each of the Collections listed note their name and the number of records that will be limited down to if you choose that option.
This dialog allows you to filter your current search.
Each of the Serial/Series Titles listed note their name and the number of records that will be limited down to if you choose that option.
This dialog allows you to filter your current search.
Each of the Resource Types listed note their name and the number of records that will be limited down to if you choose that option.
This dialog allows you to filter your current search.
Each of the Decades listed note their name and the number of records that will be limited down to if you choose that option.
This dialog allows you to filter your current search.
Each of the Years listed note their name and the number of records that will be limited down to if you choose that option.
This dialog allows you to filter your current search.
Each of the Months listed note their name and the number of records that will be limited down to if you choose that option.
This dialog allows you to filter your current search.
Each of the Days listed note their name and the number of records that will be limited down to if you choose that option.