FR438976A - Perfectionnements aux disques pour machines parlantes - Google Patents

Perfectionnements aux disques pour machines parlantes

Info

Publication number
FR438976A
FR438976A FR438976DA FR438976A FR 438976 A FR438976 A FR 438976A FR 438976D A FR438976D A FR 438976DA FR 438976 A FR438976 A FR 438976A
Authority
FR
France
Prior art keywords
discs
talking machines
talking
machines
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LETTROPHONES Ltd
Original Assignee
LETTROPHONES Ltd
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 LETTROPHONES Ltd filed Critical LETTROPHONES Ltd
Application granted granted Critical
Publication of FR438976A publication Critical patent/FR438976A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0014—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form
    • G11B23/0021—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs
FR438976D 1912-01-13 1912-01-13 Perfectionnements aux disques pour machines parlantes Expired FR438976A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR438976T 1912-01-13

Publications (1)

Publication Number Publication Date
FR438976A true FR438976A (fr) 1912-06-01

Family

ID=1480445

Family Applications (1)

Application Number Title Priority Date Filing Date
FR438976D Expired FR438976A (fr) 1912-01-13 1912-01-13 Perfectionnements aux disques pour machines parlantes

Country Status (1)

Country Link
FR (1) FR438976A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4357697A (en) * 1980-04-01 1982-11-02 Yi Soo W Disk complex for reducing electrostatic forces on a record disk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4357697A (en) * 1980-04-01 1982-11-02 Yi Soo W Disk complex for reducing electrostatic forces on a record disk

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