FR685261A - Improvements to sound recording machines - Google Patents

Improvements to sound recording machines

Info

Publication number
FR685261A
FR685261A FR685261DA FR685261A FR 685261 A FR685261 A FR 685261A FR 685261D A FR685261D A FR 685261DA FR 685261 A FR685261 A FR 685261A
Authority
FR
France
Prior art keywords
sound recording
recording machines
machines
sound
recording
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
French (fr)
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR685261A publication Critical patent/FR685261A/en
Expired legal-status Critical Current

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
    • G11B3/02—Arrangements of heads
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • G11B3/34—Driving or guiding during transducing operation
    • 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
    • G11B3/02—Arrangements of heads
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • G11B3/34—Driving or guiding during transducing operation
    • G11B3/36—Automatic-feed mechanisms producing progressive transducing traverse across record carriers otherwise than by grooves, e.g. by lead-screw
FR685261D 1929-01-19 1929-11-26 Improvements to sound recording machines Expired FR685261A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US537547XA 1929-01-19 1929-01-19

Publications (1)

Publication Number Publication Date
FR685261A true FR685261A (en) 1930-07-08

Family

ID=21986315

Family Applications (1)

Application Number Title Priority Date Filing Date
FR685261D Expired FR685261A (en) 1929-01-19 1929-11-26 Improvements to sound recording machines

Country Status (4)

Country Link
AT (1) AT124835B (en)
DE (1) DE537547C (en)
FR (1) FR685261A (en)
GB (1) GB344789A (en)

Also Published As

Publication number Publication date
GB344789A (en) 1931-03-06
AT124835B (en) 1931-10-10
DE537547C (en) 1931-11-04

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