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US Patent: 3,169,416
Boring head and method of using same
Patentees:
Friedrich H. Burkhardt - Eislingen, Germany
Ernest Carlson - Birmingham, MI

USPTO Classifications:
408/181, 408/1R, 82/1.4

Tool Categories:
metalworking machines : drilling and boring : boring bars
metalworking tools : boring bars

Assignees:
Ex-Cell-O Corp. - Detroit, MI

Manufacturer:
Ex-Cell-O Corp. - Detroit, MI

Witnesses:
Unknown

Patent Dates:
Applied: Sep. 05, 1961
Granted: Feb. 16, 1965

Patent Pictures:
USPTO pdf tiff
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