BE380046A - - Google Patents

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Publication number
BE380046A
BE380046A BE380046DA BE380046A BE 380046 A BE380046 A BE 380046A BE 380046D A BE380046D A BE 380046DA BE 380046 A BE380046 A BE 380046A
Authority
BE
Belgium
Prior art keywords
sound
blackening
curve
film
point
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE380046A publication Critical patent/BE380046A/fr

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  • Optical Recording Or Reproduction (AREA)
BE380046D BE380046A (OSRAM)

Publications (1)

Publication Number Publication Date
BE380046A true BE380046A (OSRAM)

Family

ID=49852

Family Applications (1)

Application Number Title Priority Date Filing Date
BE380046D BE380046A (OSRAM)

Country Status (1)

Country Link
BE (1) BE380046A (OSRAM)

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