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GB221379A
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Improvements in turntables for sound reproducing and like machines
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GB218783A
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Improvements in sound boxes for sound recording and sound reproducing machines
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GB220036A
|
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Improvements in machines for pressing sound records and the like
|
|
GB215561A
|
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Improved method of and apparatus for forming sound records and the like
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GB220037A
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Improved moulding machine for the manufacture of disc records for talking machines
|
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GB220038A
|
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Improvements in automatic starting and stopping mechanism for talking machines and the like
|
|
GB213016A
|
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Improvements in thermoplastic compositions and the process of compounding the same
|
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US1468609A
|
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Plastic composition of matter having a basis of cellulose ester
|
|
US1468608A
|
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Phonograph-record material
|
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GB211919A
|
|
Improvements in metal backed matrices for use in the manufacture of gramophone records and the like, and in the production of the same
|
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GB201203A
|
|
Improvements in or relating to winding devices for spring motors
|
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US1487127A
|
|
Stop for sound-reproducing machines
|
|
US1491932A
|
|
Automatic stop for sound-reproducing machines
|
|
GB189585A
|
|
Improvements in stop mechanism for sound reproducing machines
|
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US1435258A
|
|
Suspension device for vibratory structures
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DE374519C
|
|
Device for pressing records and similar flat objects
|
|
US1481743A
|
|
Method and apparatus for pressing disk sound records without the aid of heating and cooling mediums
|
|
DE367737C
|
|
Device for attaching a crank or the like for winding up a spring motor accommodated in a housing
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US1417402A
|
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Winding device
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GB155225A
|
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Improvements in and relating to moulding presses
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