JPS6263771U - - Google Patents

Info

Publication number
JPS6263771U
JPS6263771U JP15490885U JP15490885U JPS6263771U JP S6263771 U JPS6263771 U JP S6263771U JP 15490885 U JP15490885 U JP 15490885U JP 15490885 U JP15490885 U JP 15490885U JP S6263771 U JPS6263771 U JP S6263771U
Authority
JP
Japan
Prior art keywords
filter paper
center
aquarium
verification
ions
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.)
Pending
Application number
JP15490885U
Other languages
English (en)
Japanese (ja)
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 filed Critical
Priority to JP15490885U priority Critical patent/JPS6263771U/ja
Publication of JPS6263771U publication Critical patent/JPS6263771U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Instructional Devices (AREA)
JP15490885U 1985-10-09 1985-10-09 Pending JPS6263771U (US20020095090A1-20020718-M00002.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15490885U JPS6263771U (US20020095090A1-20020718-M00002.png) 1985-10-09 1985-10-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15490885U JPS6263771U (US20020095090A1-20020718-M00002.png) 1985-10-09 1985-10-09

Publications (1)

Publication Number Publication Date
JPS6263771U true JPS6263771U (US20020095090A1-20020718-M00002.png) 1987-04-20

Family

ID=31075125

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15490885U Pending JPS6263771U (US20020095090A1-20020718-M00002.png) 1985-10-09 1985-10-09

Country Status (1)

Country Link
JP (1) JPS6263771U (US20020095090A1-20020718-M00002.png)

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