FR541221A - Device for recording telephone communications - Google Patents

Device for recording telephone communications

Info

Publication number
FR541221A
FR541221A FR541221DA FR541221A FR 541221 A FR541221 A FR 541221A FR 541221D A FR541221D A FR 541221DA FR 541221 A FR541221 A FR 541221A
Authority
FR
France
Prior art keywords
telephone communications
recording telephone
recording
communications
telephone
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)
Inventor
Heinrich Junger
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 filed Critical
Application granted granted Critical
Publication of FR541221A publication Critical patent/FR541221A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D19/00—Movable-strip writing or reading apparatus
FR541221D 1919-10-18 1921-03-25 Device for recording telephone communications Expired FR541221A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE541221X 1919-10-18

Publications (1)

Publication Number Publication Date
FR541221A true FR541221A (en) 1922-07-25

Family

ID=6559207

Family Applications (1)

Application Number Title Priority Date Filing Date
FR541221D Expired FR541221A (en) 1919-10-18 1921-03-25 Device for recording telephone communications

Country Status (1)

Country Link
FR (1) FR541221A (en)

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