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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Humphrey Instruments Inc
Original Assignee
Humphrey Instruments Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Humphrey Instruments IncfiledCriticalHumphrey Instruments Inc
Priority to JP50120558ApriorityCriticalpatent/JPS5246695A/en
Publication of JPS5246695ApublicationCriticalpatent/JPS5246695A/en
Publication of JPS6113814B2publicationCriticalpatent/JPS6113814B2/ja
JP50120558A1975-10-061975-10-06Apparatus for and method of subjective testing of eye for astigmatism and spherical surface compensation
GrantedJPS5246695A
(en)