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554: Block Signature Signature

The Pen Addict

CHAPTER

Is There a Way to Refill and Seal a Cartridge?

Stefan asks, is there a way to refill refill and seal a cartridge? I don't want to just be buying new sealed cartridges because of the cost. There's an interesting market opportunity for someone who can do this. If you're trying to avoid that, I don't know a great answer for this.

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