Racal Safety Limited

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5035239 Powered respiratorsExpiredJun 22, 89Jul 30, 91[A62B]
4971052 Breathing apparatusExpiredJul 17, 89Nov 20, 90[A62B]
D295046 Pump assembly for supplying air to a respirator, or the likeExpiredAug 23, 85Apr 05, 88[]
4590951 Breathing apparatusExpiredJun 06, 84May 27, 86[A62B]
4572323 Hearing protectorsExpiredMar 20, 84Feb 25, 86[H04R]
4430995 Power assisted air-purifying respiratorsExpiredMay 24, 82Feb 14, 84[A62B]
4419994 RespiratorsExpiredJun 22, 81Dec 13, 83[A62B]
4417575 RespiratorsExpiredJun 22, 81Nov 29, 83[A62B]

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