FR430117A - Protector for phones - Google Patents

Protector for phones

Info

Publication number
FR430117A
FR430117A FR430117DA FR430117A FR 430117 A FR430117 A FR 430117A FR 430117D A FR430117D A FR 430117DA FR 430117 A FR430117 A FR 430117A
Authority
FR
France
Prior art keywords
protector
phones
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
Josef Lindenthaler
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.)
JOSEF LINDENTHALER
Original Assignee
JOSEF LINDENTHALER
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 JOSEF LINDENTHALER filed Critical JOSEF LINDENTHALER
Application granted granted Critical
Publication of FR430117A publication Critical patent/FR430117A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/12—Sanitary or hygienic devices for mouthpieces or earpieces, e.g. for protecting against infection

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR430117D 1911-05-24 1911-05-24 Protector for phones Expired FR430117A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR430117T 1911-05-24

Publications (1)

Publication Number Publication Date
FR430117A true FR430117A (en) 1911-10-09

Family

ID=1472391

Family Applications (1)

Application Number Title Priority Date Filing Date
FR430117D Expired FR430117A (en) 1911-05-24 1911-05-24 Protector for phones

Country Status (1)

Country Link
FR (1) FR430117A (en)

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