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公开(公告)号:US1406201A
公开(公告)日:1922-02-14
申请号:US21767218
申请日:1918-02-16
Applicant: G PIEL COMPANY INC
Inventor: MACMICHAEL ROSS F
IPC: G01F23/16
CPC classification number: G01F23/167
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公开(公告)号:US1418313A
公开(公告)日:1922-06-06
申请号:US20962617
申请日:1917-12-31
Applicant: G PIEL COMPANY INC
Inventor: LONG GEORGE F
IPC: G05G7/02
CPC classification number: G05G7/02 , G05G2700/16 , Y10T74/20534 , Y10T74/20636
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公开(公告)号:US1328772A
公开(公告)日:1920-01-20
申请号:US1912693222
申请日:1912-04-25
Applicant: G PIEL COMPANY INC
Inventor: LONG GEORGE F
IPC: G10K9/10
CPC classification number: G10K9/10
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