BE378255A - - Google Patents

Info

Publication number
BE378255A
BE378255A BE378255DA BE378255A BE 378255 A BE378255 A BE 378255A BE 378255D A BE378255D A BE 378255DA BE 378255 A BE378255 A BE 378255A
Authority
BE
Belgium
Application number
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
Publication of BE378255A publication Critical patent/BE378255A/xx

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)
  • Brushes (AREA)
  • Adornments (AREA)
  • Telephone Set Structure (AREA)
BE378255D 1929-06-26 1931-03-17 BE378255A (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB19619/29A GB335577A (en) 1929-06-26 1929-06-26 New or improved disinfecting and cleansing device for telephone and like mouthpieces
FR717777T 1930-09-24

Publications (1)

Publication Number Publication Date
BE378255A true BE378255A (enrdf_load_stackoverflow) 1931-04-30

Family

ID=10890861

Family Applications (1)

Application Number Title Priority Date Filing Date
BE378255D BE378255A (enrdf_load_stackoverflow) 1929-06-26 1931-03-17

Country Status (4)

Country Link
US (1) US1797135A (enrdf_load_stackoverflow)
BE (1) BE378255A (enrdf_load_stackoverflow)
FR (1) FR717777A (enrdf_load_stackoverflow)
GB (3) GB335577A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572547A (en) * 1948-09-01 1951-10-23 Horace L Webb Dictation mask with cartridge type silencer
US2659778A (en) * 1950-09-11 1953-11-17 Fraschetti Virgilio Device for treating with disinfectant the mouthpieces of telephones and like apparatus
US5034979A (en) * 1989-04-14 1991-07-23 Erickson Peggy J Earring adapter for telephone
GB2246050A (en) * 1990-07-13 1992-01-15 Hwang Feng Lin Telephone cleaner
CN112233526A (zh) * 2020-09-05 2021-01-15 常州工学院 一种物联网沙盘教学演示装置

Also Published As

Publication number Publication date
GB335577A (en) 1930-09-26
GB367380A (en) 1932-02-19
FR717777A (fr) 1932-01-14
US1797135A (en) 1931-03-17
GB396747A (en) 1933-08-08

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