4. Geometrical instruments
  5. Scriber
  6. Curved surface

Robert H. Johns

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Apparatus for determining an edge profile of a metallic workpiec

Geometrical instruments – Scriber – Parallel line
Patent

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Apparatus for determining surface profiles of metallic workpiece

Geometrical instruments – Scriber – Curved surface
Patent

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Apparatus for strip casting

Metal founding – Means to shape metallic material – Continuous or semicontinuous casting
Patent

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Bifilar antenna trap

Communications: radio wave antennas – Antennas – With lumped reactance filter in active antenna
Patent

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Bifilar antenna trap

Communications: radio wave antennas – Antennas – With lumped reactance filter in active antenna
Patent

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Profile ID: LFUS-PAI-P-662260

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