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公开(公告)号：DD158342A3
公开(公告)日：1983-01-12
申请号：DD16851173
申请日：1973-01-30
Applicant: GEISLER FRANZ , KAMINSKI WOLFGANG , STAHL DIETMAR , NEUMANN KLAUS
Inventor： GEISLER FRANZ , KAMINSKI WOLFGANG , STAHL DIETMAR , NEUMANN KLAUS
IPC: G03C1/02
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