Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 2,969,846
Percussive drill bit for use in reverse flow flushing is soft rock drilling
Patentee:
Robert L. Sandvig (exact or similar names) - Whittier, CA

USPTO Classifications:
175/213, 175/418, 175/419, 175/426

Tool Categories:

Assignees:
Thor Power Tool Co. - Aurora, IL

Manufacturer:
Thor Power Tool Co. - Aurora, IL

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 16, 1958
Granted: Jan. 31, 1961

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Thor Power Tool Co.

Copyright © 2002-2024 - DATAMP