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GB538226A
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An improved device for detecting and salvaging submerged articles or structures of ferrous metals
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GB531921A
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Improvements in or relating to speed changing gear
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GB529897A
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Improvements in or relating to transmission gearing
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GB411580A
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Improvements in friction ratchet and free-wheel clutches
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GB400282A
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Improvements in transmission gearing
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GB400228A
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Improvements in transmission gearing
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GB397120A
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Improvements in flying machines, and in apparatus for the propulsion of fluids
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GB273365A
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Improvements in clutches for transmitting rotary motion
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GB242378A
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Improvements in speed changing gear
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GB239689A
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Improvements in clutches for transmitting power
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GB186205A
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Improvements in transmission gearing
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GB153982A
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Improvements in transmission gearing
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AU1110813B
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Improvements in and connected with multiblade propellers fans andthe like
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