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公开(公告)号：US984840A
公开(公告)日：1911-02-21
申请号：US1910587898
申请日：1910-10-19
Applicant: NORTHAM AUTO PRESSURE GAUGE CO
Inventor： NORTHAM ROBERT J , SANDHAM WALTER E
CPC classification number: F02N1/02
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公开(公告)号：US948526A
公开(公告)日：1910-02-08
申请号：US1909487585
申请日：1909-04-02
Applicant: NORTHAM AUTO PRESSURE GAUGE CO
Inventor： SANDHAM WALTER E
CPC classification number: B60C23/0496 , Y10T137/3662
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