|
US1540058A
|
|
Automatic thermostatic and time controlled device
|
|
US1479789A
|
|
Automatic valve cut-off
|
|
US1479788A
|
|
Fire extinguisher
|
|
US1455021A
|
|
Automatic steam trap
|
|
US1438983A
|
|
Self-cleaning strainer for fluids
|
|
US1410656A
|
|
Steam trap
|
|
US1410658A
|
|
Thermostatic control device for heating chambers
|
|
US1360251A
|
|
Thermostatic control device
|
|
US1216547A
|
|
Self-cleaning strainer for liquids.
|
|
US1136211A
|
|
Boiler-cut-off system.
|
|
US1033544A
|
|
Steam-strainer.
|
|
US949294A
|
|
Regulating-valve.
|
|
US972338A
|
|
Automatic steam-cut-off valve.
|
|
US948311A
|
|
Water-strainer.
|
|
US895343A
|
|
Reducing-valve.
|
|
US895342A
|
|
Boiler feed-valve.
|
|
US877908A
|
|
Reducing-valve.
|
|
US911379A
|
|
Gage-cock.
|
|
US926389A
|
|
Electrically-operated valve.
|
|
US877907A
|
|
Steam-pressure-reducing valve.
|
