CA312347A - Glass tube grading machine - Google Patents

Glass tube grading machine

Info

Publication number
CA312347A
CA312347A CA312347A CA312347DA CA312347A CA 312347 A CA312347 A CA 312347A CA 312347 A CA312347 A CA 312347A CA 312347D A CA312347D A CA 312347DA CA 312347 A CA312347 A CA 312347A
Authority
CA
Canada
Prior art keywords
glass tube
grading machine
tube grading
machine
glass
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
CA312347A
Other languages
French (fr)
Inventor
E. Gray David
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.)
Corning Glass Works
Original Assignee
Corning Glass Works
Publication date
Application granted granted Critical
Publication of CA312347A publication Critical patent/CA312347A/en
Expired legal-status Critical Current

Links

CA312347A Glass tube grading machine Expired CA312347A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA312347T

Publications (1)

Publication Number Publication Date
CA312347A true CA312347A (en) 1931-06-16

Family

ID=35271673

Family Applications (1)

Application Number Title Priority Date Filing Date
CA312347A Expired CA312347A (en) Glass tube grading machine

Country Status (1)

Country Link
CA (1) CA312347A (en)

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