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Helmut C. Mueller, "Method and Apparatus for Cutting Pile Yarns" (US3389667A)

Patent · not yet checked at the source

Made by: Helmut C. Mueller
Date: filed 23 Dec 1965, granted 25 Jun 1968
Held by: Bigelow-Sanford (assignee)
Number: US3389667A
Themes: Hand-tufting tools & the gun, Tools & equipment

View at the source Cited in chapter 9, note 27

Cite this source

Helmut C. Mueller, “Method and Apparatus for Cutting Pile Yarns” (US3389667A), filed 23 Dec 1965, granted 25 Jun 1968; assigned to Bigelow-Sanford. patents.google.com/patent/US3389667A/en.

Research notes

Text says "handheld tufting gun". Patent research (Oct 2026): number, title, names and dates read from the USPTO scan.