CA1124359A - Detecteur de noircissement - Google Patents

Detecteur de noircissement

Info

Publication number
CA1124359A
CA1124359A CA333,538A CA333538A CA1124359A CA 1124359 A CA1124359 A CA 1124359A CA 333538 A CA333538 A CA 333538A CA 1124359 A CA1124359 A CA 1124359A
Authority
CA
Canada
Prior art keywords
blackening
signal
web
spots
datum
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
CA333,538A
Other languages
English (en)
Inventor
John M. Lucas
Serge Gracovetsky
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.)
Domtar Inc
Original Assignee
Domtar 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 Domtar Inc filed Critical Domtar Inc
Priority to CA333,538A priority Critical patent/CA1124359A/fr
Application granted granted Critical
Publication of CA1124359A publication Critical patent/CA1124359A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
CA333,538A 1979-08-10 1979-08-10 Detecteur de noircissement Expired CA1124359A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA333,538A CA1124359A (fr) 1979-08-10 1979-08-10 Detecteur de noircissement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA333,538A CA1124359A (fr) 1979-08-10 1979-08-10 Detecteur de noircissement

Publications (1)

Publication Number Publication Date
CA1124359A true CA1124359A (fr) 1982-05-25

Family

ID=4114905

Family Applications (1)

Application Number Title Priority Date Filing Date
CA333,538A Expired CA1124359A (fr) 1979-08-10 1979-08-10 Detecteur de noircissement

Country Status (1)

Country Link
CA (1) CA1124359A (fr)

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Legal Events

Date Code Title Description
MKEX Expiry