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US2894970A
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Ester-type wax oxidate of macrocrystalline wax and process for producing same
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US2885023A
|
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Reflection seismic exploration method
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US2894998A
|
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Method of treating a c4 hydrocarbon stream
|
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US2864347A
|
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Internal combustion engine
|
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US2874855A
|
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Personnel or object transfer apparatus and method
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US2856739A
|
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Manufacture of radiation detectors and the like
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US2882014A
|
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Mud sampling device
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US2896915A
|
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Method of drilling wells
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US2876145A
|
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Removal of deposits such as paraffin from oil lines by use of soluble candy plug
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US2868726A
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Drilling fluid
|
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US2856154A
|
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Drilling method
|
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US2871189A
|
|
Drilling fluid
|
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US2880177A
|
|
Lubricating greases thickened with benzidine diazo compounds
|
|
US2851418A
|
|
Lubricating greases thickened with 3-nu-aryl-carbamyl-2-hydroxy-1-naphthyleneazoarenes
|
|
US2875135A
|
|
Geomicrobiological prospecting
|
|
US2880176A
|
|
Lubricating grease comprising methylchlorophenyl silicone polymer thickened with a high melting diazo compound
|
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US2878874A
|
|
Producing petroleum from underground formations
|
|
US2870134A
|
|
Preparation of calcium phenolates and sulfurized derivatives thereof
|
|
US2885274A
|
|
Motor fuel composition
|
|
US2887452A
|
|
Motor lubricating oil composition
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