Title:
Valve and valve-seat facing tool
United States Patent 1450116
Inventors:
Ruhlandt, Walther C.
Publication Date:
03/27/1923
Assignee:
Ruhlandt, Walther C.
Other Classes:
15/104.02, 82/172, 408/83.5, 408/223, 451/430
International Classes:
B23C3/05