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USRE39493E1
(en)
|
|
Respirator having snap-fit filter cartridge
|
|
US4233972A
(en)
|
|
Portable air filtering and breathing assist device
|
|
US3736927A
(en)
|
|
Self-contained air purifier and conditioner unit
|
|
US3657740A
(en)
|
|
Ventilated welder{3 s mask assembly
|
|
US3413972A
(en)
|
|
Airflow helmet
|
|
GB2032284B
(en)
|
|
Breathing apparatus
|
|
US10653197B2
(en)
|
|
Hard hat with filtered, battery-operated air flow system and method
|
|
AU4275385A
(en)
|
|
Respirators fan-assisted
|
|
KR200471463Y1
(ko)
|
|
공기 정화 호흡 장치
|
|
FR785223A
(fr)
|
|
Appareil portatif de protection contre les gaz
|
|
EP0108560A1
(en)
|
|
Powered air supply units for respirators
|
|
GB761263A
(en)
|
|
Improvements in respiratory masks
|
|
FR782137A
(fr)
|
|
Perfectionnements aux masques à gaz
|
|
GB1212821A
(en)
|
|
Improvements in or relating to respirator devices
|
|
FR1320829A
(fr)
|
|
Aérateur autonome pour la respiration en atmosphère polluée
|
|
FR818839A
(fr)
|
|
Perfectionnements aux appareils respiratoires
|
|
AT115845B
(de)
|
|
Filter, insbesondere Atmungsfilter für Rauch und Nebel, sowie Verfahren zu seiner Herstellung.
|
|
DE1979478U
(de)
|
|
Zum anbau an landwirtschaftlichen maschinen, insbesondere maehdreschern, geeignetes luftreinigungsgeraet.
|
|
GB2029258A
(en)
|
|
Improvements in or relating to bulk material vacuum conveying apparatus
|
|
DD749A
(da)
|
|
|