CH260120A - Process for producing master molds to be used in the record industry. - Google Patents

Process for producing master molds to be used in the record industry.

Info

Publication number
CH260120A
CH260120A CH260120DA CH260120A CH 260120 A CH260120 A CH 260120A CH 260120D A CH260120D A CH 260120DA CH 260120 A CH260120 A CH 260120A
Authority
CH
Switzerland
Prior art keywords
master molds
producing master
record industry
record
industry
Prior art date
Application number
Other languages
German (de)
Inventor
America Radio Corporation Of
Original Assignee
Rca Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rca Corp filed Critical Rca Corp
Publication of CH260120A publication Critical patent/CH260120A/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68—Record carriers
    • G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
CH260120D 1946-02-23 1947-02-20 Process for producing master molds to be used in the record industry. CH260120A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US260120XA 1946-02-23 1946-02-23

Publications (1)

Publication Number Publication Date
CH260120A true CH260120A (en) 1949-02-28

Family

ID=21829340

Family Applications (1)

Application Number Title Priority Date Filing Date
CH260120D CH260120A (en) 1946-02-23 1947-02-20 Process for producing master molds to be used in the record industry.

Country Status (1)

Country Link
CH (1) CH260120A (en)

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