4. Electricity: motive power systems
  5. Positional servo systems
  6. Program- or pattern-controlled systems

Holger Krohn

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Duplicating method and arrangement

Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Patent

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Four-quadrant current-regulated energization of D.C. motor using

Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent

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Method and device for producing respiratory air which is...

Surgery – Respiratory method or device – Means for cooling respiratory gas or respiration device
Reexamination Certificate

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Method of electrically measuring the concentration of acids

Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent

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Profile ID: LFUS-PAI-P-829343

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