|
DE436686C
|
|
Sorting scales
|
|
DE433454C
|
|
Process for the production of pure cerium compounds
|
|
DE434387C
|
|
Conical gas mask
|
|
DE432552C
|
|
Lighting fixture with two reflectors
|
|
DE412106C
|
|
Self-forming gas glow light stems for standing light burners
|
|
DE420090C
|
|
Breathing protection device with filter for suction of dust, mist particles or the like.
|
|
DE435654C
|
|
Process for the preparation of solutions of hydrazoic acid from its alkali salts
|
|
DE411537C
|
|
Device for connecting electrical lines
|
|
DE421955C
|
|
Method for truing email
|
|
DE417726C
|
|
Process for the precipitation of easily filterable, hydrate titanium acid from titanium salt solutions
|
|
DE417787C
|
|
Process for mirroring glass or other surfaces made of non-conductive materials
|
|
DE413321C
|
|
Rigid half mask enclosing nose and chin
|
|
DE411723C
|
|
Process for the production of iron-free titanic acid
|
|
DE413511C
|
|
Process for cleaning cellulose using caustic alkalis and for the production of mercerized cellulose for rayon manufacture
|
|
DE422664C
|
|
Double-walled insulating vessel
|
|
DE421021C
|
|
Process for the preparation of acetylsalicylic acid
|
|
DE413948C
|
|
safety goggles
|
|
DE422097C
|
|
Method of weighing silk
|
|
DE411265C
|
|
Process for the preparation of rayon for textile industrial purposes
|
|
DE429805C
|
|
Closure for sleeveless isolation vessels
|
