|
GB304675A
|
|
Improvements in or relating to valve operating mechanism
|
|
GB312429A
|
|
Improvements in and relating to liquid heaters
|
|
US1762120A
|
|
Operating mechanism
|
|
US1884764A
|
|
Burner structure
|
|
GB309436A
|
|
A new or improved electric apparatus for heating liquids
|
|
GB309416A
|
|
Improvements in electric liquid heaters
|
|
GB309415A
|
|
A new or improved electric switch structure and mechanism for actuating the same
|
|
GB300618A
|
|
Improvements in or relating to heating apparatus
|
|
GB291417A
|
|
Improvements in and relating to fluid heaters
|
|
US1812198A
|
|
Apparatus for heating or vaporizing fluid
|
|
US1787450A
|
|
Heating apparatus
|
|
US1822871A
|
|
Heating apparatus
|
|
US1831368A
|
|
Switch mechanism
|
|
US1769301A
|
|
Machine for making casings or jackets
|
|
US1769300A
|
|
Casing or jacket and process of making same
|
|
US1791477A
|
|
Thermostat mechanism
|
|
US1737834A
|
|
Heater
|
|
US1712925A
|
|
Apparatus for positioning parts on bodies
|
|
GB269687A
|
|
Improvements in or relating to thermostat controlled valve mechanism
|
|
US1484056A
|
|
Hot-water-tank cover or jacket
|
