|
GB327044A
|
|
Improvements in or relating to hot water or steam boilers
|
|
GB322402A
|
|
Improvements in or relating to bearings for rotary drums
|
|
GB328634A
|
|
Improvements relating to the cooling of grinding mills
|
|
US1836736A
|
|
Upright boiler with magazine above the zone of combustion
|
|
GB295166A
|
|
Improvements in or relating to bearings for rotary drums
|
|
GB272952A
|
|
Improvements in or relating to toothed gearing
|
|
US1672398A
|
|
Shaft coupling
|
|
US1698516A
|
|
Combination with smoke-tube boiler
|
|
US1651049A
|
|
Boiler for heating systems or similar purposes
|
