BE438255A - - Google Patents

Info

Publication number
BE438255A
BE438255A BE438255DA BE438255A BE 438255 A BE438255 A BE 438255A BE 438255D A BE438255D A BE 438255DA BE 438255 A BE438255 A BE 438255A
Authority
BE
Belgium
Prior art keywords
recording
sound
films
asymmetric
slit
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE438255A publication Critical patent/BE438255A/fr

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
BE438255D BE438255A (forum.php)

Publications (1)

Publication Number Publication Date
BE438255A true BE438255A (forum.php)

Family

ID=96521

Family Applications (1)

Application Number Title Priority Date Filing Date
BE438255D BE438255A (forum.php)

Country Status (1)

Country Link
BE (1) BE438255A (forum.php)

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