Patent search ap:("ROSS OPERATING VALVE CO") AND inv:"HENNELLS WILLIAM E" Page 1

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发明授权
Valve 失效

公开(公告)号：US2611391A

公开(公告)日：1952-09-23

申请号：US63497045

申请日：1945-12-14

Applicant: ROSS OPERATING VALVE CO

Inventor： JOHN SAINSBURY , HENNELLS WILLIAM E

IPC: B23K11/36 , F15B13/043

CPC classification number: F15B13/0431 , B23K11/36 , Y10T137/87201

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