In the matter of the application of Erastus B. Bigelow to the Commissioner of Patents for an extension of his letters-patent, for improvements in the power-loom for weaving ingrain carpets by Benjamin Robbins Curtis

In the matter of the application of Erastus B. Bigelow to the Commissioner of Patents for an extension of his letters-patent, for improvements in the power-loom for weaving ingrain carpets