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公开(公告)号:US1997237A
公开(公告)日:1935-04-09
申请号:US66340733
申请日:1933-03-29
Applicant: REYNOLDS SPRING CO
Inventor: SCHRIER DONALD P
IPC: B60N2/70
CPC classification number: B60N2/7041
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公开(公告)号:US1923751A
公开(公告)日:1933-08-22
申请号:US56380831
申请日:1931-09-19
Applicant: REYNOLDS SPRING CO
Inventor: SCHRIER DONALD P , JACKSON CHARLES F
IPC: B21F11/00
CPC classification number: B21F11/005 , Y10T83/2198 , Y10T83/222 , Y10T83/544
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