4. Office supplies; artists and teachers materials
  5. Office equipment not elsewhere specified

Charles T. Link

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Endless filament paper clip

Buckles – buttons – clasps – etc. – Paper fastener – Resiliently biased
Patent

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Highway crossing bell apparatus

Communications: electrical – Audible indication – Percussion-type sound producer
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Low-profile railway car retarder

Brakes – Vehicle – Railway
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Paper clip

Office supplies; artists and teachers materials – Office equipment not elsewhere specified
Patent

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Pneumatic pressure actuator

Expansible chamber devices – Passage in cylinder for application of separate fluid to...
Patent

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Profile ID: LFUS-PAI-P-558419

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