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US Patent: 1,299,208
Relieving Lathe
Patentee:
Friederich Müller - Hartford, CT

USPTO Classifications:
125/11.05, 451/249, 451/374, 82/117, 82/142, 82/148, 82/152, 82/19

Tool Categories:
metalworking machines : metal lathes : backing off attachments

Assignees:
Pratt & Whitney Co. - Hartford, CT

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jan. 27, 1917
Granted: Apr. 01, 1919

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Pratt, Whitney & Co.

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