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G. H. Whitcomb & Co.
Reissued July 12, 1881
Country of Publication
"This invention consists of certain improvements in the folding and drying apparatus of envelope-machines, which are described and represented as applied to the improved machines patented by us heretofore - to wit, on February 22, 1876, and on December 26, 1876 - though the same may be advantageously applied to other forms of that class of envelope machines in which gum is applied to the seal-flaps of the envelopes after they are placed in the machine."
Swift and Whitcombe
Envlope machine, envelopes, Worcester, MA, patent, patents, G. Henry Whitcomb, G. Henry Whicomb & Co., Henry D. Swift, D. Wheeler Swift
Industrial Engineering | Manufacturing
Swift, H. D. and Swift, D. W., "Envelope Machine" (1881). WPI Innovations. 5.