US Number-Issued Patents (1836-1861, 1866-1920)

Improvement in means for obviating difficulties arising from defective insulation in telegraphs

Improvement in means for obviating difficulties arising from defective insulation in telegraphs

Inventor Name

Files

Patent Date

1851-08-26

Patent Number

8321

Location

Macon, Bibb County

Copyright

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Improvement in means for obviating difficulties arising from defective insulation in telegraphs

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