|
US3080057A
|
|
Below atmospheric pressure method and means for separating lighter liquids from heavier liquids
|
|
US2967051A
|
|
Means for treating air to provide comfort in hot and cold weather
|
|
US2909637A
|
|
Method and apparatus for treating air in hot and cold weather
|
|
US2968437A
|
|
Method and means for circulating air under pressure of radially propelled horizontal jets
|
|
US2808933A
|
|
Positive automatic means and method of controlling liquid or liquid mixtures in the process of separation
|
|
US3067877A
|
|
Means and method for the automatic separating and purifying of liquids of different specific gravities
|
|
US2747736A
|
|
Grease and oil interceptor and method of separating fluids of different specific gravities
|
|
US2417010A
|
|
Air circulating and conditioning device
|
|
US2037731A
|
|
Vacuum seal
|
|
US1988325A
|
|
Vent seal
|
|
US2025883A
|
|
Process and apparatus for separating liquids
|
|
US1961237A
|
|
Propulsion means
|
|
US1977949A
|
|
Propulsion means
|
|
US1980925A
|
|
Propulsion means
|
|
US1835572A
|
|
Wave motor
|
|
CA673391A
|
|
Method and means for treating air to create a localized comfort zone of expanding air in a room or area
|
|
CA681670A
|
|
Means and method for the automatic separating and purifying of liquids of different specific gravities
|
|
CA554068A
|
|
Separation of immiscible liquids by automatic decantation
|
|
CA638758A
|
|
Method and apparatus for treating air in hot and cold weather
|
|
CA583926A
|
|
Grease and oil interceptor
|
