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GB278685A
|
|
Improved weight arrangement for dressless diving equipment consisting of breathing appliances
|
|
GB267538A
|
|
Improvements in an?sthetic-administering apparatus
|
|
US1686516A
|
|
Setting for eyeglasses
|
|
GB260560A
|
|
Improvements in gas protective masks
|
|
GB260209A
|
|
Improvements in or relating to respiratory cartridges for self contained breathing apparatus
|
|
GB247990A
|
|
Improvements in or relating to respiratory cartridges for self-contained breathing apparatus
|
|
GB249827A
|
|
Improvements in or relating to gas protective masks
|
|
US1695930A
|
|
Inhaling device for administering gases and the like
|
|
GB253405A
|
|
Improvements in or relating to self-contained breathing apparatus
|
|
GB250067A
|
|
Improvements in or relating to apparatus for administering gases and the like
|
|
US1654557A
|
|
Autogenous cutting burner
|
|
US1527927A
|
|
Apparatus for use in administering gases, vapors, and the like
|
|
GB212167A
|
|
Improvements in or relating to self-contained breathing apparatus
|
|
GB215576A
|
|
Improvements in or relating to supporting devices for portable breathing apparatus
|
|
GB190645A
|
|
Improvements relating to breathing apparatus for use in noxious gases and the like
|
|
US1488442A
|
|
Artificial-breathing apparatus
|
|
US1497197A
|
|
Protective device for autogenous apparatus
|
|
US1505106A
|
|
Burner for the autogenous cutting of metals
|
|
GB168857A
|
|
Improvements relating to burners for the autogenous cutting of metals
|
|
GB170381A
|
|
Improvements in or relating to respiratory apparatus
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