Invention Grant
- Patent Title: Internal-combustion engine
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Application No.: US16871027Application Date: 1927-02-16
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Publication No.: US1668883APublication Date: 1928-05-08
- Inventor: SEYMOUR ALLWILL STEPHEN
- Applicant: ALLWILL VARIABLE COMPRESSION E
- Assignee: Allwill Variable Compression E
- Current Assignee: Allwill Variable Compression E
- Priority: US16871027 1927-02-16
- Main IPC: F02B75/04
- IPC: F02B75/04 ; F02B75/28
Public/Granted literature
- US11197088B2 MEMS microphone with acoustic relief channels Public/Granted day:2021-12-07
Information query
