Piston and method of making the same
United States Patent 2024767

Inventors:
Zay, Jeffries
Kempf, Louis W.
Publication Date:
12/17/1935
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Assignee:
ALUMINUM CO OF AMERICA
Primary Class:
75/228
Other Classes:
420/548, 419/48, 29/888.044, 75/249
International Classes:
C22C1/04