|
DE669914C
|
|
Compressor for chlorine gas
|
|
DE596227C
|
|
Diaphragm pump
|
|
DE637527C
|
|
Chlorine compressor
|
|
DE610560C
|
|
Borehole pumps, in particular differential piston pumps with working pistons and plungers
|
|
DE541749C
|
|
Deep well piston pump
|
|
GB191212062A
|
|
An Improvement in Air Relief Valves for Diving Apparatus or Equipments.
|
|
GB191010228A
|
|
Improvements in Distributing Devices for Compressed Air Tools, Rock Drills and the like.
|
|
GB190911461A
|
|
Improvements in Pneumatic Rock Drills.
|
|
GB190712006A
|
|
Improvements in Drills for Pneumatic Hammer Rock Drilling Machines.
|
|
GB190711922A
|
|
An Improvement in Pneumatic Hammer Rock Drilling Machines
|
|
GB190522935A
|
|
Improved Mounting for Coal Cutting Machines.
|
|
DE382415C
|
|
Overground water post
|
|
DE463521C
|
|
Rotary lobe pump with piston drum and slide piston rotating eccentrically in the housing
|
|
DE361652C
|
|
Hot steam shut-off valve
|
