Paraperm Trademarks

PARAPERM
Plastic Buttons for Use in the Manufacture of Contact Lenses
Cancelled  ·  May 18, 1984  ·  73481040  · 
PARAPERM O2
Highly Oxygen Permeable, Optical Polyacrylate Silicon Material for Producing Contact Lenses
Cancelled  ·  June 1, 1981  ·  73312764  · 
paraperm o2