DAVID HARRISON FOSTER
Optometry in Reading, PA
License number
Pennsylvania OE005934T
Category
Optometry
Type
Optometrist-Therapeutics
Address
Address
Reading, PA 19606
Personal information
See more information about DAVID HARRISON FOSTER at radaris.comName
Address
Phone
508 Woodbridge Cir, Harleysville, PA 19438
505 Carol Ln, Bath, PA 18014
5037 Saul St, Philadelphia, PA 19124
4 Parthermore Cir, Lewisberry, PA 17339
523 2Nd Ave APT 12, Bethlehem, PA 18018
Professional information
See more information about DAVID HARRISON FOSTER at trustoria.com
David H Foster, Reading PA - OD (Doctor of Optometry)
David H Foster, Reading PA - OD (Doctor of Optometry)
Specialties:
Optometry
Address:
2504 Perkiomen Ave, Reading 19606
(610) 779-9636 (Phone), (610) 779-9671 (Fax)
(610) 779-9636 (Phone), (610) 779-9671 (Fax)
Languages:
English
David H Foster, Reading PA
David H Foster, Reading PA
Specialties:
Optometrist
Address:
2504 Perkiomen Ave, Reading, PA 19606
Eyeglass Frame Permitting Interchanging Of Lenses
Eyeglass Frame Permitting Interchanging Of Lenses
US Patent:
5293185, Mar 8, 1994
Filed:
Sep 17, 1992
Appl. No.:
7/945914
Inventors:
Ray A. Berger - Palmyra PA
David H. Foster - Reading PA
David H. Foster - Reading PA
International Classification:
G02C 108
US Classification:
351 95
Abstract:
An eyeglass frame having removable lenses, comprising of lens rings which are split into an upper and lower ring portion. Interposed between the upper and lower ring portions, and forming an integral part of the frame and positive actuating means to force open and draw closed the split lens rings to facilitate insertion and removal of lens. Several spices of eyeglass frame are visualized The preferred spieces utilizes a coil spring and resilient rod. Another spieces visualized utilizes several serrated coupling edges and an actuating fulcrum.