JP2591381C - - Google Patents

Info

Publication number
JP2591381C
JP2591381C JP2591381C JP 2591381 C JP2591381 C JP 2591381C JP 2591381 C JP2591381 C JP 2591381C
Authority
JP
Japan
Prior art keywords
opening
tear
package
notch
heat
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 - Lifetime
Application number
Other languages
English (en)
Japanese (ja)
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.)
Toppan Inc
Original Assignee
Toppan Inc
Publication date

Links

Family

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