2 Tuloksia löytyi "Tiedosto:Students'_Potentiometer_-_DPLA_-_e40c75ae379448015db13f09633c2620_(page_1).jpg".

Tiedosto:Students' Potentiometer - DPLA - e40c75ae379448015db13f09633c2620 (page 1).jpg

Leeds and Northrup Company reference URL: https://dp.la/item/e40c75ae379448015db13f09633c2620 publisher: Digital Public Library of America retrieved: 11...

Tiedosto:Students' Potentiometer - DPLA - e40c75ae379448015db13f09633c2620 (page 2).jpg

Leeds and Northrup Company reference URL: https://dp.la/item/e40c75ae379448015db13f09633c2620 publisher: Digital Public Library of America retrieved: 11...

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