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DE2808365A1
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Organic-mineral soil improver - contg. assimilable carbon cpds. amino acids and biogenic amines and minerals all components pref. from sugar beet waste
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GB190909491A
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An Improvement in Thrust Bearings.
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US947368A
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Thrust-bearing with a plurality of cylindrical rollers.
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GB190702439A
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Improvements relating to Roller Thrust Bearings.
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GB190216113A
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Improvements in Ball Bearings.
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US677434A
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Thrust-bearing.
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GB190102091A
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Improvements in Thrust Blocks or Bearings
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GB189804719A
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An Improved Device for Altering the Speed of Travel or Reversing or Stopping Screw Steamers having Adjustable or Feathering Propellers.
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GB189728591A
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An Improved Throttle Valve Actuating Device for Steam Engines.
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