Patent search ap:("KRAMER MACHINE AND ENGINEERING") AND inv:"KRAMER JAMES H" Page 1

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发明授权
Closure for pressure vessels 失效
Title translation: 关闭压力容器

公开(公告)号：US2954141A

公开(公告)日：1960-09-27

申请号：US56155756

申请日：1956-01-26

Applicant: KRAMER MACHINE AND ENGINEERING

Inventor： KRAMER JAMES H , MOSHIER WILL R

IPC: B01J3/03 , F16J13/12

CPC classification number: F16J13/12 , B01J3/03

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