Knockology - Mechanical Pencil Forum
MARS-770: History and analysis
Discussion by Brand
Staedtler
stu-dying
February 27, 2025, 3:04pm
4
From Damdeok’s research regarding the MARS-770:
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History of polymer-bound fine leads
Schreib- und Zeichengerätefabrik Philipp Mutschler
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