FR685084A - Portable ringing device - Google Patents

Portable ringing device

Info

Publication number
FR685084A
FR685084A FR685084DA FR685084A FR 685084 A FR685084 A FR 685084A FR 685084D A FR685084D A FR 685084DA FR 685084 A FR685084 A FR 685084A
Authority
FR
France
Prior art keywords
portable
ringing device
ringing
portable ringing
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
Victor-Basile-Almir Boudier
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 FR685084A publication Critical patent/FR685084A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/02—Audible signalling systems; Audible personal calling systems using only mechanical transmission

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR685084D 1929-08-05 1929-08-05 Portable ringing device Expired FR685084A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR685084T 1929-08-05

Publications (1)

Publication Number Publication Date
FR685084A true FR685084A (en) 1930-07-04

Family

ID=9024805

Family Applications (1)

Application Number Title Priority Date Filing Date
FR685084D Expired FR685084A (en) 1929-08-05 1929-08-05 Portable ringing device

Country Status (1)

Country Link
FR (1) FR685084A (en)

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