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公开(公告)号:US3491427A
公开(公告)日:1970-01-27
申请号:US3491427D
申请日:1967-05-01
Applicant: ZIMMERMAN D W MFG
Inventor: ZIMMERMAN DELBERT W , POWELL EDGAR R
CPC classification number: B62D65/12 , B60B29/00 , Y10T29/53687 , Y10T428/13 , Y10T428/15
公开(公告)号:US3491427A
公开(公告)日:1970-01-27
申请号:US3491427D
申请日:1967-05-01
Applicant: ZIMMERMAN D W MFG
Inventor: ZIMMERMAN DELBERT W , POWELL EDGAR R
CPC classification number: B62D65/12 , B60B29/00 , Y10T29/53687 , Y10T428/13 , Y10T428/15