Technology@lemmy.mlEnglish · 2 hours ago

TIL about absorption refrigerating systems

patents.google.com

TIL about absorption refrigerating systems

patents.google.com

☆ Yσɠƚԋσʂ ☆@lemmy.ml to

Technology@lemmy.mlEnglish · 2 hours ago

US1685764A - Refrigerator - Google Patents

patents.google.com

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1 hour ago
You have to login to see their patents? Lol.

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