TREA

Alf I. Alfredsson

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  • Savedalen, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Arrangement for winding cameras
    • Patent number 4,693,579
    • Issue date Sep 15, 1987
    • Victor Hasselblad AB
    • Alf I. Alfredsson
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Mechanism in single-lens reflex cameras
    • Patent number 4,673,271
    • Issue date Jun 16, 1987
    • Victor Hasselblad AB
    • Alf I. Alfredsson
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY