|
GB625264A
|
|
Improvements in building units and in the methods of producing the same
|
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IE14676L
|
|
Manufacture of building slabs
|
|
GB476193A
|
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Improved manufacture of building slabs
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US2139977A
|
|
Cylinder head for internal combustion engines
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GB432786A
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Improvements in or relating to dynamo electric machines
|
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GB435593A
|
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Improvements in and relating to moulds for casting
|
|
GB437402A
|
|
Method and device for the regulation of electrically heated windscreens
|
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DE607097C
|
|
Headlights for bicycles and motorcycles
|
|
GB372634A
|
|
An electric switch for use with vehicle direction indicators or the like
|
|
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|
|
Safety razor
|
|
GB303909A
|
|
Direction indicator for vehicles
|
|
US1814062A
|
|
Process for extracting a metal from its ore
|
|
US1765886A
|
|
Apparatus for distilling oil
|
|
US2047037A
|
|
Direction indicator
|
|
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|
|
Apparatus for gasifying oil
|
|
US1733135A
|
|
Combined process of distilling, cracking, and gas making, and apparatus therefor
|
|
US1713149A
|
|
Apparatus for distilling oil
|
|
GB211487A
|
|
Process of and apparatus for treating hydrocarbons and similar compounds
|
|
AU787707B
|
|
Method of and apparatus for concentrating ores
|
|
DE607689C
|
|
Headlights for bicycles and motorcycles
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