Patent search ap:("ALFRED BOORER") AND inv:"ALFRED BOORER" Page 1

1.

发明授权
Valve gear of internal-combustion engines 失效
Title translation: 内燃机的阀门齿轮

公开(公告)号：US2416512A

公开(公告)日：1947-02-25

申请号：US54220544

申请日：1944-06-26

Applicant: ALFRED BOORER

Inventor： ALFRED BOORER

IPC: F01L1/28 , F01L1/44 , F01L1/46

CPC classification number: F01L1/46 , F01L1/44

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