General & OtherThe modern phorometer, including the phorometer-trial frame, phoro-optometer, and the rotary cross-cylinder, by Henry L. De ZengHenry Lawrence De Zeng![The modern phorometer, including the phorometer-trial frame, phoro-optometer, and the rotary cross-cylinder, by Henry L. De Zeng]()
The modern phorometer, including the phorometer-trial frame, phoro-optometer, and the rotary cross-cylinder, by Henry L. De Zeng
Henry Lawrence De Zeng
Al-Warraq Library does not host book files; it takes you to the copy at the original source. Public-domain status differs from country to country, so check the law where you live before downloading or republishing the book. Do you hold rights in this work? Request its removal
“The modern phorometer, including the phorometer-trial frame, phoro-optometer, and the rotary cross-cylinder, by Henry L. De Zeng” by Henry Lawrence De Zeng…
Catalogue details
- Author
- Henry Lawrence De Zeng
- Category
- General & Other
- Language
- English
- Source
- HathiTrust