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FR2563299A1
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Improvements to angular anti-return devices
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ES118174A1
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Improvements in the chain drive devices to lift or lower the stained-glass windows.
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ES104977A1
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Improvements in devices designed to balance objects suspended elastically and that can move or run upwards, especially the mobile glasses of vehicles.
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GB191211049A
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Improvements in Machines for Dating Tickets with an Embossing Stamp and Registering Matter Printed in Copying Ink upon the Tickets.
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GB191210697A
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Improvements in Machine for Dating Tickets with an Embossing Stamp and Registering Matter Printed in Copying Ink upon the Tickets.
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CA256936A
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Counterbalancing and operating system for windows
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CA251646A
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Counterbalancing means for movable devices
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