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GB458832A
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Improvements in materials for self lubricating bearings
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GB464920A
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Improvements in and relating to the lubrication of slide surfaces
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GB458829A
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Improvements in and relating to self-lubricating bearings
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GB453142A
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Improvements in method and apparatus for the production of metal powders
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GB430777A
|
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Improvements in or relating to the manufacture of metallic powders
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GB424607A
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Improvements in and relating to the production of graphite lubricants
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GB426237A
|
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Improvements in and relating to the production of graphite-lubricants
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GB300879A
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Improvements in and relating to machines for rounding the individual particles of metal powders
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GB293609A
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An improved metal powder and a method of producing the same
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GB278997A
|
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Improvements in pulverising mills
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GB215396A
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Improvements in apparatus for recording and reproducing sound
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GB215395A
|
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Improvements in apparatus for recording and reproducing sound
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US1645911A
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Device for recording and reproducing sound
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US1607004A
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Sound recording and reproducing apparatus
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GB191407566A
|
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Improvements in Electrical Driving Mechanism for Talking Machines.
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AU1167813B
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Method producing pliable receiving plates for talking machines with a leaf shaped carrier and a thin phonogram layer waxy or ozokerite substance
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GB191329321A
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A Method of Manufacturing Flexible Record Blanks or Discs for Talking Machines.
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GB190416932A
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Improvements relating to Electromagnetic Brakes for Vehicles.
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