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The Clay Commercial Telephone Co. et al., appellants, vs. American Bell Telephone Co. et al. appeal from the Circuit Court of the United States for the Eastern District of Pennsylvania : brief for appellants
- "Clay Commercial Telephone Company et al., appellants, vs. American Bell Telephone Company et al"@en
- "Patents"@en
- "Trials, litigation, etc"@en
- "Electronic books"@en
- "The Clay Commercial Telephone Co. et al., appellants, vs. American Bell Telephone Co. et al. appeal from the Circuit Court of the United States for the Eastern District of Pennsylvania : brief for appellants"@en