Method of hardening brake drums of malleable-iron disk automobile wheels
United States Patent 1711835

Inventors:
Davis, Thomas R.
Publication Date:
05/07/1929
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Assignee:
Davis, Thomas R.
Primary Class:
148/616
Other Classes:
266/259, 266/261, 76/24.100, 148/641, 76/101.100, 148/642, 266/49, 266/130, 76/DIG.002, 266/127, 266/77, 266/124, 76/107.100, 76/2, 188/218R
International Classes:
C21D5/00