Patent search ap:("ALUMINUM CO OF AMERICA") AND inv:"ARCHEB ROBERT S" Page 1

1.

发明授权
Piston and method of making the same 失效

公开(公告)号：US1732557A

公开(公告)日：1929-10-22

申请号：US70786824

申请日：1924-04-21

Applicant: ALUMINUM CO OF AMERICA

Inventor： ZAY JEFFRIES , ARCHEB ROBERT S

IPC: F02F3/00 , F02F3/02

CPC classification number: F02F3/0084 , F02F3/025 , F05C2201/021 , Y10S164/08

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