4. Typewriting machines
  5. Typing by other than type-face or type-die
  6. Character formation by impact

Helmut Grottrup

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Circuit unit

Registers – Records – Fluorescent – phosphorescent – radiation emitting
Patent

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Matrix printer

Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent

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Method and apparatus for card authentication using display of sy

Registers – Systems controlled by data bearing records – Credit or identification card systems
Patent

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Safeguard against falsification of securities and the like which

Registers – Records – Fluorescent – phosphorescent – radiation emitting
Patent

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Transparent package

Special receptacle or package – Article housing attached to panel – Bag-type housing
Patent

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Profile ID: LFUS-PAI-P-460536

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