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Continue to ChatRazors and blades model - why Gillette did not implement it https://wegianwetshaving.com/2020/09/razors-and-blades-model-why-gillette-did-not-implement-it/
Razors and blades model - why Gillette did not implement it https://wegianwetshaving.com/2020/09/razors-and-blades-model-why-gillette-did-not-implement-it/