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US4449214A
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Record cleaning mechanism
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IT7830619D0
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Damping device for resonances in record player tone arm - has bracket with pad at its end, resting on record surface
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DE2823428A1
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Damping device for resonances in record player tone arm - has bracket with pad at its end, resting on record surface
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US4082213A
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Method of mounting a particle on a support member
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US4131284A
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Damper means for damping the resonance of disc record tone arms
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US4001519A
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Pick-up cartridges for gramophone records
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US3945647A
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Cleaning gramophone records
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GB1008968A
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Improvements in and relating to high vacuum pumps
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GB1025844A
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An improved suspension for the pick-up head of a gramophone disc record player
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GB740243A
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Improvements in the manufacture of electron discharge devices
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GB777030A
|
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Improvements in electron discharge tubes
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GB740348A
|
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Resilient supports for electron discharge tube electrodes
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GB740680A
|
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Improvements in thermionic valves
|
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GB740347A
|
|
Improvements in or relating to thermionic valves
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GB632384A
|
|
Improvements in supports for filaments of thermionie valves
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GB643654A
|
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Improvements in or relating to electron discharge devices
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|
GB500890A
|
|
Improvements in or relating to the manufacture of luminous electric discharge tubes
|
|
GB463196A
|
|
Improvements relating to apparatus for signalling from or for display purposes on aircraft
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GB461669A
|
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Improvements relating to apparatus for signalling from or for display purposes in connection with aircraft
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GB432726A
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Apparatus for the supply of electric current to neon and like luminous discharge tubes
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