4. Internal-combustion engines
  5. Lubricators
  6. Crankcase, pressure control

Rolf Luther

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Carbohydrate esters for using as lubricants

Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Protein – carbohydrate – lignin – plant matter of indeterminate...
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Compositions of material, especially lubricants and pressure...

Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Compound of indeterminate structure – prepared by reacting an...
Reexamination Certificate

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Device and method for automatically detecting at least one...

Optics: measuring and testing – Oil testing
Reexamination Certificate

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Method and device for lubricating and simultaneously...

Internal-combustion engines – Two-cycle – Rear compression
Reexamination Certificate

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Method and device for lubricating and simultaneously...

Internal-combustion engines – Lubricators – Crankcase – pressure control
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2445775

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