4. Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
  5. Sash balances
  6. Spring

Robert S. Krolick

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Helicoidal structures, useful as wind turbines

Fluid reaction surfaces (i.e. – impellers) – Spiral blade or flow passage
Patent

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Solvent-bondable plastic parts with capillary-action blocking mo

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Sash balances – Spring
Patent

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Tactile last-step indicator for stair safety

Signals and indicators – Indicators – By touch
Patent

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Profile ID: LFUS-PAI-P-1407206

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