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公开(公告)号:US1767864A
公开(公告)日:1930-06-24
申请号:US13352126
申请日:1926-09-04
Applicant: DEXTER COMPANY
Inventor: WELLER RANDOLPH V
IPC: D06F65/06
CPC classification number: D06F65/06
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公开(公告)号:US1767865A
公开(公告)日:1930-06-24
申请号:US13787526
申请日:1926-09-27
Applicant: DEXTER COMPANY
Inventor: WELLER RANDOLPH V
IPC: D06F65/06
CPC classification number: D06F65/06
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公开(公告)号:US1767863A
公开(公告)日:1930-06-24
申请号:US63218223
申请日:1923-04-16
Applicant: DEXTER COMPANY
Inventor: WELLER RANDOLPH V
IPC: D06F65/06
CPC classification number: D06F65/06
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