Auger.
Description:
Patent for a new auger designed "to provide a construction in which the parts may be adjusted to cut angular holes entirely through a body, and also to cut angular countersinks concentric with cylindrical openings, such as are made for the reception of the square heads of bolts lag screws, &c.," (lines 10-16), which includes illustrations and instructions.
Date:
April 29, 1902
Creator:
Bundy, John J.
Item Type:
Refine your search to only
Patent