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公开(公告)号:US3016920A
公开(公告)日:1962-01-16
申请号:US67661857
申请日:1957-08-06
Applicant: SPECIALTIES DEV CORP
Inventor: THOMSEN WILLIAM A V , MORGAN CARREL B , QUAIL BERNARD W
CPC classification number: F16K31/0627 , Y10T137/86622
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公开(公告)号:US2575368A
公开(公告)日:1951-11-20
申请号:US12759749
申请日:1949-11-16
Applicant: SPECIALTIES DEV CORP
Inventor: THOMSEN WILLIAM A V
IPC: F41A7/04
CPC classification number: F41A7/04
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公开(公告)号:US2376353A
公开(公告)日:1945-05-22
申请号:US40017441
申请日:1941-06-28
Applicant: SPECIALTIES DEV CORP
Inventor: GRANT JR HARRY C , THOMSEN WILLIAM A V
IPC: A62B9/02
CPC classification number: A62B9/02 , Y10T137/1789 , Y10T137/8326 , Y10T137/87861 , Y10T137/88038
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公开(公告)号:US2355185A
公开(公告)日:1944-08-08
申请号:US38404741
申请日:1941-03-19
Applicant: SPECIALTIES DEV CORP
Inventor: THOMSEN WILLIAM A V
IPC: A62C35/60
CPC classification number: A62C35/605
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公开(公告)号:US2317422A
公开(公告)日:1943-04-27
申请号:US42507541
申请日:1941-12-31
Applicant: SPECIALTIES DEV CORP
Inventor: THOMSEN WILLIAM A V
IPC: F16K41/10
CPC classification number: F16K41/106 , Y10T137/1714
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