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公开(公告)号:US3332501A
公开(公告)日:1967-07-25
申请号:US42479265
申请日:1965-01-11
Applicant: ROY PARISH
Inventor: ROY PARISH
IPC: E21B11/00
CPC classification number: E21B11/005
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公开(公告)号:US3159319A
公开(公告)日:1964-12-01
申请号:US21445162
申请日:1962-07-30
Applicant: ROY PARISH
Inventor: ROY PARISH
IPC: B65D83/16
CPC classification number: B65D83/201
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