Harald Hoffmann

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Alkaline cell or battery

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer – spacer or materials for use therewith
Reexamination Certificate

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Apparatus for treating exposed photosensitive materials

Patent

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Carrier sleeve

Bleaching and dyeing; fluid treatment and chemical modification – Fluid treatment – Special forms and forming
Patent

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Device with granular bed filters for raw gas purification

Gas separation – With separate flow line access means or filter media passage... – For discrete filter particles
Patent

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Filter for cleaning gases

Gas separation – Means within gas stream for conducting concentrate to collector
Patent

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Profile ID: LFUS-PAI-P-737441

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