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公开(公告)号:US2365700A
公开(公告)日:1944-12-26
申请号:US39244741
申请日:1941-05-08
Applicant: SPECIALTIES DEV CORP
Inventor: ERNEST HEIGIS HENRY
IPC: B64C25/22
CPC classification number: B64C25/22 , Y10S60/904
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公开(公告)号:US2351607A
公开(公告)日:1944-06-20
申请号:US40355241
申请日:1941-07-22
Applicant: SPECIALTIES DEV CORP
Inventor: GRANT JR HARRY C , ALBERT MANHARTSBERGER
IPC: B64D25/20
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公开(公告)号:US2316789A
公开(公告)日:1943-04-20
申请号:US21359638
申请日:1938-06-14
Applicant: SPECIALTIES DEV CORP
Inventor: ERNEST HEIGIS HENRY , TOWART JR ARCHIE
IPC: A62C13/00
CPC classification number: A62C13/003
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公开(公告)号:US2304084A
公开(公告)日:1942-12-08
申请号:US40495441
申请日:1941-08-01
Applicant: SPECIALTIES DEV CORP
Inventor: GRANT JR HARRY C , ALBERT MANHARTSBERGER
IPC: H01H35/14
CPC classification number: H01H35/14
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公开(公告)号:US2261026A
公开(公告)日:1941-10-28
申请号:US21322738
申请日:1938-06-11
Applicant: SPECIALTIES DEV CORP
Inventor: ERNEST HEIGIS HENRY
CPC classification number: B67D7/72 , A62C99/0027 , Y10T137/2693 , Y10T137/7846 , Y10T137/7934
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公开(公告)号:US2200922A
公开(公告)日:1940-05-14
申请号:US13971037
申请日:1937-04-29
Applicant: SPECIALTIES DEV CORP
Inventor: ERNEST HEIGIS HENRY
IPC: B64D37/32
CPC classification number: B64D37/32 , Y10T137/1707 , Y10T137/1744 , Y10T137/3127 , Y10T137/8811
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公开(公告)号:US3357495A
公开(公告)日:1967-12-12
申请号:US47865965
申请日:1965-08-10
Applicant: SPECIALTIES DEV CORP
Inventor: JAMISON WILL B
CPC classification number: A62D1/0071 , A62C3/06
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78.Photosensitive intruder detecting system using alternately charged reactance 失效
Title translation: 光敏入侵者检测系统采用交替充电电抗公开(公告)号:US3339194A
公开(公告)日:1967-08-29
申请号:US37812964
申请日:1964-06-26
Applicant: SPECIALTIES DEV CORP
Inventor: ARCHER ANDREW M
IPC: G08B13/189
CPC classification number: G08B13/1895
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公开(公告)号:US3283827A
公开(公告)日:1966-11-08
申请号:US41682764
申请日:1964-12-08
Applicant: SPECIALTIES DEV CORP
Inventor: DIEHL DONALD A
IPC: A62C99/00
CPC classification number: A62C99/009 , A62C3/006 , Y10S55/36
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80.Doppler type intruder detection system arranged to eliminate extraneous air turbulence effects 失效
Title translation: 多普勒型入侵者检测系统安排消除无关的空气湍流效应公开(公告)号:US3271755A
公开(公告)日:1966-09-06
申请号:US35221564
申请日:1964-03-16
Applicant: SPECIALTIES DEV CORP
Inventor: BAGNO SAMUEL M
IPC: G08B13/16
CPC classification number: G08B13/1627
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