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公开(公告)号：US3580558A
公开(公告)日：1971-05-25
申请号：US3580558D
申请日：1969-01-08
Applicant: BLISS CO
Inventor： HELRIGEL ROBERT A , BROWNELL JAMES R , WARD RODERICK K , KEITHLEY HARRY E
IPC: B21D24/02
CPC classification number: B21D24/02
Abstract: A machine press bed assembly including an air cushion seated in the press bed, air input means integral with the press bed floor, aperture means in an end wall of the cushion accommodating said air input means, and holddown means penetrating the press bed sides engaging the cushion, the cushion being removable from said press bed by disengaging the holddown means.
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