US Patent: 1,043,194
|
Grinding and polishing machine
|
Patentee:
|
|
John C. Blevney (exact or similar names) - Newark, NJ |
|
Patent Dates:
|
Applied: |
Nov. 27, 1911 |
Granted: |
Nov. 05, 1912 |
USPTO (New site tip) Google Patents
Report data errors or omissions to steward
Jeff Joslin Vintage Machinery entry for Production Machine Co.
|
Description: |
"The present invention has for its principle object to provide an efficient apparatus for grinding and polishing objects having two or more flat surfaces, such for example as square, or other polygonally-shaped rods or tubing..." |
|