4. H - Electricity
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John S. Roberts

H - Electricity – 01 – L

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Apparatus for variable image printing on tape

B - Operations – Transporting – 41 – J
Patent

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Cracking catalysts with tin compounds

B - Operations – Transporting – 01 – J
Patent

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Electrical contact for silicon carbide members

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Patent

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Encapsulated light activated semiconductor device

H - Electricity – 01 – L
Patent

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Heat-treated flour

A - Human Necessities – 21 – D
Patent

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Sulphur compound production

C - Chemistry – Metallurgy – 07 – C
Patent

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Profile ID: LFCA-PAI-P-21660

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