FR566454A - Portable backup device - Google Patents

Portable backup device

Info

Publication number
FR566454A
FR566454A FR566454DA FR566454A FR 566454 A FR566454 A FR 566454A FR 566454D A FR566454D A FR 566454DA FR 566454 A FR566454 A FR 566454A
Authority
FR
France
Prior art keywords
backup device
portable backup
portable
backup
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
Fernand-Martin Bloch
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 FR566454A publication Critical patent/FR566454A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K7/00—Sirens
    • G10K7/06—Sirens in which the sound-producing member is driven by a fluid, e.g. by a compressed gas

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR566454D 1922-08-24 1922-08-24 Portable backup device Expired FR566454A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR566454T 1922-08-24

Publications (1)

Publication Number Publication Date
FR566454A true FR566454A (en) 1924-02-15

Family

ID=8947122

Family Applications (1)

Application Number Title Priority Date Filing Date
FR566454D Expired FR566454A (en) 1922-08-24 1922-08-24 Portable backup device

Country Status (1)

Country Link
FR (1) FR566454A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6216265B1 (en) 1990-09-10 2001-04-10 Starsight Telecast, Inc. System and method for transmitting and utilizing electronic program guide information

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6216265B1 (en) 1990-09-10 2001-04-10 Starsight Telecast, Inc. System and method for transmitting and utilizing electronic program guide information

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