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Friedrich Engelhardt

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1-esters of 3-organosulfonyl-2-aza-succinic acid and base...

C - Chemistry – Metallurgy – 08 – F
Patent

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Alkenyl-phosphonic and -phosphinic esters, process for their...

C - Chemistry – Metallurgy – 07 – F
Patent

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Alkenylphosphonic and -phosphinic acid esters, process for...

C - Chemistry – Metallurgy – 07 – F
Patent

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Aqueous clay base mud for deep drilling

C - Chemistry – Metallurgy – 09 – K
Patent

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Cement slurries for deep holes, with a copolymer content for...

E - Fixed Constructions – 21 – B
Patent

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Gels rich in hydrocarbons

E - Fixed Constructions – 21 – B
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Hydrophilic, swellable polymers

B - Operations – Transporting – 01 – J
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Profile ID: LFCA-PAI-P-35664

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