CA889858A - Mark-forming record materials and process for their use - Google Patents

Mark-forming record materials and process for their use

Info

Publication number
CA889858A
CA889858A CA889858A CA889858DA CA889858A CA 889858 A CA889858 A CA 889858A CA 889858 A CA889858 A CA 889858A CA 889858D A CA889858D A CA 889858DA CA 889858 A CA889858 A CA 889858A
Authority
CA
Canada
Prior art keywords
mark
record materials
forming record
forming
materials
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
CA889858A
Inventor
Lin Chao-Han
J. Wright Arthur
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.)
National Cash Register Co
Original Assignee
National Cash Register Co
Publication date
Application granted granted Critical
Publication of CA889858A publication Critical patent/CA889858A/en
Expired legal-status Critical Current

Links

CA889858A Mark-forming record materials and process for their use Expired CA889858A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA889858T

Publications (1)

Publication Number Publication Date
CA889858A true CA889858A (en) 1972-01-04

Family

ID=36396025

Family Applications (1)

Application Number Title Priority Date Filing Date
CA889858A Expired CA889858A (en) Mark-forming record materials and process for their use

Country Status (1)

Country Link
CA (1) CA889858A (en)

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