BE639660A - - Google Patents

Info

Publication number
BE639660A
BE639660A BE639660DA BE639660A BE 639660 A BE639660 A BE 639660A BE 639660D A BE639660D A BE 639660DA BE 639660 A BE639660 A BE 639660A
Authority
BE
Belgium
Prior art keywords
glass
tile
violet
protective
visible
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE639660A publication Critical patent/BE639660A/fr

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/04Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing
    • A61F9/06Masks, shields or hoods for welders
    • A61F9/065Masks, shields or hoods for welders use of particular optical filters

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
BE639660D BE639660A (OSRAM)

Publications (1)

Publication Number Publication Date
BE639660A true BE639660A (OSRAM)

Family

ID=203968

Family Applications (1)

Application Number Title Priority Date Filing Date
BE639660D BE639660A (OSRAM)

Country Status (1)

Country Link
BE (1) BE639660A (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2118917A1 (OSRAM) * 1970-12-24 1972-08-04 Frungel Frank

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2118917A1 (OSRAM) * 1970-12-24 1972-08-04 Frungel Frank

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