BE439422A - - Google Patents

Info

Publication number
BE439422A
BE439422A BE439422DA BE439422A BE 439422 A BE439422 A BE 439422A BE 439422D A BE439422D A BE 439422DA BE 439422 A BE439422 A BE 439422A
Authority
BE
Belgium
Prior art keywords
layer
gelatin
fog
transparent anti
support
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE439422A publication Critical patent/BE439422A/fr

Links

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/082Assembling eyepieces, lenses or vision-correction means in or on gas-masks

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Laminated Bodies (AREA)
BE439422D BE439422A (https=)

Publications (1)

Publication Number Publication Date
BE439422A true BE439422A (https=)

Family

ID=97409

Family Applications (1)

Application Number Title Priority Date Filing Date
BE439422D BE439422A (https=)

Country Status (1)

Country Link
BE (1) BE439422A (https=)

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