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US Patent: 636,917
Automatic milling-machine
Patentee:
Ottmar Mergenthaler (exact or similar names) - Baltimore, MD

USPTO Classifications:
269/58, 409/155, 409/209

Tool Categories:
metalworking machines : milling machines

Assignees:
Ott. Mergenthaler Co. - Baltimore, MD

Manufacturer:
Ott. Mergenthaler Co. - Baltimore, MD

Witnesses:
Murray Hanson
William H. Berry

Patent Dates:
Applied: May 12, 1898
Granted: Nov. 14, 1899

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Wikipedia page on the linotype machine
Vintage Machinery entry for Ott. Mergenthaler Co.
Description:
This milling machine is adapted to "act upon the two opposite sides of the work in a single operation...it is shown and described herein as employed in connection with the manufacture of matrices for use in linotype-machines..." In short, this machine is specialized for making the brass "matrices" that each have the female image of one letter on its end.

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