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US Patent: 3,422,724
Mechanism for Effecting Angular Orientation of a Machine Tool Spindle
Frank Zankl - Milwaukee, Milwaukee County, WI
Richard E. Stobbe - Greenfield, Milwaukee County, WI
Clyde E. Mattson - Waukesha, Waukesha County, WI

USPTO Classifications:
408/3, 409/231, 409/64, 483/34

Tool Categories:
metalworking machines : milling machines
metalworking machines : metalworking machine mechanisms

Kearney & Trecker Corp. - West Allis, Milwaukee County, WI

Not known to have been produced


Patent Dates:
Applied: Nov. 21, 1966
Granted: Jan. 21, 1969

Patent Pictures:
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"Vintage Machinery" entry for Kearney & Trecker Co.

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