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The Vintage 36” Trimo A36 Pipe Wrench by Trimont Mfg is a collectible tool made in the United States. This large pipe wrench is designed for plumbing and steam fitting tasks, featuring a durable construction and the classic Trimont brand. Perfect for vintage tool collectors or professionals in need of a reliable and high-quality pipe wrench.
The "188990" stamp actually stands for Patented 1889 - 1890, pointing to the earliest foundational patents that launched the Trimo brand. [1]The Patents Behind Your WrenchThese dates represent the specific mechanical designs registered by the inventor, John H. Vinton, and assigned to the Trimont Manufacturing Company: [1, 2]
- 1889 (Patent No. 414,663):
