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1.发明授权Method of treating metallic containers to make them capable of holding high vacuums 失效处理金属容器以使其能够保持高真空的方法
公开(公告)号：US1527875A
公开(公告)日：1925-02-24
申请号：US63437723
申请日：1923-04-24
Applicant: PAYSON IRWIN
Inventor： PAYSON IRWIN
IPC: H01J19/70
CPC classification number: H01J19/70
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