|
US1494652A
|
|
Grease container
|
|
US1502219A
|
|
Carburetor
|
|
US1283994A
|
|
Valve-packing.
|
|
US1285497A
|
|
Automatic valve-operating apparatus.
|
|
US1285496A
|
|
Apparatus for applying gas to fluids.
|
|
US1332010A
|
|
Sterilizing apparatus
|
|
US1282151A
|
|
Differential-pressure device.
|
|
US1285494A
|
|
Means for increasing the rate of solubility of gas in a liquid.
|
|
US1285493A
|
|
Back-pressure valve.
|
|
US1285495A
|
|
Hydraulic metering and measuring device.
|
|
CA165778A
|
|
Water and sewage purifying mechanism
|
|
US1283993A
|
|
Apparatus for purifying water or sewage.
|
|
US1285491A
|
|
Apparatus for purifying water.
|
|
US1285492A
|
|
Apparatus for and process of treating liquids with gases or purifying water.
|
|
US1059014A
|
|
Ozonizer.
|
|
CA237909A
|
|
Chlorinator
|
|
CA259579A
|
|
Grease container
|
