FR499671A - Improvements to glasses - Google Patents
Improvements to glassesInfo
- Publication number
- FR499671A FR499671A FR499671DA FR499671A FR 499671 A FR499671 A FR 499671A FR 499671D A FR499671D A FR 499671DA FR 499671 A FR499671 A FR 499671A
- Authority
- FR
- France
- Prior art keywords
- glasses
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F9/00—Methods 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
- A61F9/02—Goggles
- A61F9/028—Ventilation means
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB499671X | 1918-05-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR499671A true FR499671A (en) | 1920-02-18 |
Family
ID=1534674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR499671D Expired FR499671A (en) | 1918-05-30 | 1919-05-15 | Improvements to glasses |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR499671A (en) |
-
1919
- 1919-05-15 FR FR499671D patent/FR499671A/en not_active Expired
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