ES252684A1 - Improvements introduced in the manufacture of thermographic copy sheets (Machine-translation by Google Translate, not legally binding) - Google Patents

Improvements introduced in the manufacture of thermographic copy sheets (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES252684A1
ES252684A1 ES0252684A ES252684A ES252684A1 ES 252684 A1 ES252684 A1 ES 252684A1 ES 0252684 A ES0252684 A ES 0252684A ES 252684 A ES252684 A ES 252684A ES 252684 A1 ES252684 A1 ES 252684A1
Authority
ES
Spain
Prior art keywords
translation
manufacture
machine
legally binding
google translate
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
ES0252684A
Other languages
Spanish (es)
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of ES252684A1 publication Critical patent/ES252684A1/en
Expired legal-status Critical Current

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Abstract

Improvements introduced in the manufacture of thermographic copy sheets comprising a material that chemically reacts upon being heated, to undergo a visible change and a substantial amount of particles of a solid material, inert, hard, stable and normally transparent, interdispersed and masking the reactant material, said inert material being fusible upon being heated to form a permanently transparent matrix surrounding and discovering the product of the reaction. (Machine-translation by Google Translate, not legally binding)
ES0252684A 1958-10-20 1959-10-15 Improvements introduced in the manufacture of thermographic copy sheets (Machine-translation by Google Translate, not legally binding) Expired ES252684A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76809158A 1958-10-20 1958-10-20

Publications (1)

Publication Number Publication Date
ES252684A1 true ES252684A1 (en) 1960-02-01

Family

ID=34523287

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0252684A Expired ES252684A1 (en) 1958-10-20 1959-10-15 Improvements introduced in the manufacture of thermographic copy sheets (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES252684A1 (en)

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