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GB548001A
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Improvements in trenching ploughs
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GB548002A
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Improvements in trenching ploughs
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GB547845A
|
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Improvements in trenching ploughs
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GB450997A
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Method of converting steam driven cable ploughing engines or tractors to internal combustion engine drive
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GB399369A
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Improvements relating to the fuel supply and combustion spaces of direct injection oil engines
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US1395850A
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Cable-reciprocating apparatus
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US1434957A
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Motor windlass
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GB150104A
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Improvements in, or connected with, engines employed in operating ploughs, and otherimplements for cultivating land
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GB151216A
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Improvements in, or connected with, apparatus employed in operating ploughs, and other implements for cultivating land
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GB142690A
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Improvements in connection with windlasses for use in ploughing and cultivating land
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