FR395512A - Protective device for telephone receivers - Google Patents

Protective device for telephone receivers

Info

Publication number
FR395512A
FR395512A FR395512DA FR395512A FR 395512 A FR395512 A FR 395512A FR 395512D A FR395512D A FR 395512DA FR 395512 A FR395512 A FR 395512A
Authority
FR
France
Prior art keywords
protective device
telephone receivers
receivers
telephone
protective
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
Tiburce-Francois Conti
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR395512A publication Critical patent/FR395512A/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)
FR395512D 1907-12-30 1907-12-30 Protective device for telephone receivers Expired FR395512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR395512T 1907-12-30

Publications (1)

Publication Number Publication Date
FR395512A true FR395512A (en) 1909-03-04

Family

ID=1440682

Family Applications (1)

Application Number Title Priority Date Filing Date
FR395512D Expired FR395512A (en) 1907-12-30 1907-12-30 Protective device for telephone receivers

Country Status (1)

Country Link
FR (1) FR395512A (en)

Similar Documents

Publication Publication Date Title
FR395512A (en) Protective device for telephone receivers
CH40704A (en) Protective device for telephone receiver
FR391735A (en) Protective device for pyrometers
FR390346A (en) Device for telephone transmitter and receiver
FR380573A (en) Protective device for tedders
FR396050A (en) Dust extraction device
FR7734E (en) Telephone transmission device
FR7918E (en) Clamping device
FR373559A (en) Clamping device
FR379333A (en) Protector for telephone receiver and device for its fixation
FR389133A (en) Support for telephone receiver
FR383746A (en) Discharge device for carriers
FR370088A (en) Device for cutting cables
FR385856A (en) Tap device
FR389281A (en) Device for tensioning cables
FR383348A (en) Protective device for motorists
FR377096A (en) Transmission device
FR352956A (en) Hygienic protection device for telephone devices
FR383623A (en) Corkscrew device
FR366507A (en) Restraint device for telephone receivers
FR374605A (en) Device for the protection of partridges
FR386770A (en) Indicating device for taximeter
CH45717A (en) Receiving device for letters
FR10066E (en) Airplane device
FR394126A (en) Airplane device