JPH0312892B2 - - Google Patents

Info

Publication number

JPH0312892B2

JPH0312892B2 JP56059554A JP5955481A JPH0312892B2 JP H0312892 B2 JPH0312892 B2 JP H0312892B2 JP 56059554 A JP56059554 A JP 56059554A JP 5955481 A JP5955481 A JP 5955481A JP H0312892 B2 JPH0312892 B2 JP H0312892B2

Authority

JP

Japan

Prior art keywords

laser

connector

shutter

light

detects

Prior art date

1981-04-20

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 - Lifetime

Links

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