[go: up one dir, main page]

CA558879A - Lens testing devices - Google Patents

Lens testing devices

Info

Publication number
CA558879A
CA558879A CA558879A CA558879DA CA558879A CA 558879 A CA558879 A CA 558879A CA 558879 A CA558879 A CA 558879A CA 558879D A CA558879D A CA 558879DA CA 558879 A CA558879 A CA 558879A
Authority
CA
Canada
Prior art keywords
testing devices
lens testing
lens
devices
testing
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
Application number
CA558879A
Other languages
French (fr)
Inventor
B. Whitney Donald
H. Wing James
E. Haynes Robert
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.)
American Optical Corp
Original Assignee
American Optical Corp
Publication date
Application granted granted Critical
Publication of CA558879A publication Critical patent/CA558879A/en
Expired legal-status Critical Current

Links

CA558879A Lens testing devices Expired CA558879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA558879T

Publications (1)

Publication Number Publication Date
CA558879A true CA558879A (en) 1958-06-17

Family

ID=35725288

Family Applications (1)

Application Number Title Priority Date Filing Date
CA558879A Expired CA558879A (en) Lens testing devices

Country Status (1)

Country Link
CA (1) CA558879A (en)

Similar Documents

Publication Publication Date Title
CA560498A (en) Bole-supporting device
CA558879A (en) Lens testing devices
CA552048A (en) Crash-sensitive devices
CA557959A (en) Aligning device
CA561984A (en) Devices for optically indicating voltages
AU225642B2 (en) Test set
CA562268A (en) Testing procedure
CA551762A (en) Reflex actgion testing means
CA559720A (en) Optical testing apparatus
CA551772A (en) String-casting device
CA559379A (en) Gas-fractionating device
CA558488A (en) Glare-shielding device
CA555454A (en) Connecting device
CA561538A (en) Connecting device
AU3855358A (en) Test set
AU228703B2 (en) Improvements ina rail-fixing device
CA565998A (en) Light projection device
CA555649A (en) Light projection device
CA568006A (en) Demonstration device
CA567517A (en) Spring testing device
AU229955B2 (en) Photoconductive devices
CA558302A (en) Test tablet
AU222630B2 (en) Screening device
CA553487A (en) Test apparatus
CA558027A (en) Thermostatic device