4. G - Physics
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Norman R. Westfall

G - Physics – 06 – G

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Block and tackle window balance

E - Fixed Constructions – 05 – F
Patent

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Cord guide system for sash balance

E - Fixed Constructions – 05 – D
Patent

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Curl spring shoe based window balance system

E - Fixed Constructions – 05 – F
Patent

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Fluid resistor

F - Mech Eng,Light,Heat,Weapons – 15 – C
Patent

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Force balance instrument for computing

G - Physics – 06 – G
Patent

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Method of making articles of dissimilar polymer compositions

C - Chemistry – Metallurgy – 08 – F
Patent

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Spring cover friction system for sash balance

E - Fixed Constructions – 05 – F
Patent

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Profile ID: LFCA-PAI-P-91142

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