|
US1726672A
|
|
Pipe-gripping mechanism
|
|
GB290365A
|
|
Improvements in or relating to transporting mechanism for pipe annealing furnaces
|
|
US1582440A
|
|
Socket core for pipe molds
|
|
US1551827A
|
|
Pipe-annealing furnace
|
|
US1433109A
|
|
Gas-producer feed
|
|
US1351767A
|
|
Method of and apparatus for charging rotating pipe-molds
|
|
US1347582A
|
|
Centrifugal casting-machine
|
|
US1351766A
|
|
Centrifugal pipe-casting
|
|
US1344409A
|
|
Centrifugal casting-machine
|
|
US1367001A
|
|
Pneumatic rammer
|
|
CA294815A
|
|
Method for improving the texture of hollow metal bodies
|
|
CA294983A
|
|
Manufacture and repair of centrifugal moulds
|
