Title:
Programming
United States Patent 3270812
US Patent References:
Welding apparatus and control therefor actuated by an electric current pulse timer
- - 2496779
Fluid control system particularly for use with automatic clotheswashing machines
- - 2503901
Production of hydrocarbon material
- - 2867277
Lawn sprinkler controller
- - 2911156
Secondary recovery technique
- - 2927637
Welding apparatus and control therefor actuated by an electric current pulse timer
- - 2496779
Fluid control system particularly for use with automatic clotheswashing machines
- - 2503901
Production of hydrocarbon material
- - 2867277
Lawn sprinkler controller
- - 2911156
Secondary recovery technique
- - 2927637
Inventors:
Gilchrist, Ralph E.
Langenheim, Richard H.
Langenheim, Richard H.
Publication Date:
09/06/1966
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Export Citation:
Assignee:
PHILLIPS PETROLEUM CO
Primary Class:
Other Classes:
166/401, 340/309.400, 137/624.110, 166/52, 166/64, 307/141
International Classes:
E21B43/16; G05D7/06
US Patent References: