Items

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Items

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  [SB1677034A], Letter from Howe and Austin, Walter Electric Burglar Alarm Co to Unknown, May 19th, 1874

  1874-05-19
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  [SB1677038], Letter from Howe and Austin, Walter Electric Burglar Alarm Co to Thomas Alva Edison, June 29th, 1874

  1874-06-29
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  [SB1677038A], Letter from Howe and Austin, Walter Electric Burglar Alarm Co to Thomas Alva Edison, June 30th, 1874

  1874-06-30
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  [SB1677044], Letter from Howe and Austin, Walter Electric Burglar Alarm Co to Thomas Alva Edison, July 27th, 1874

  1874-07-27
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  [SB1677076], Letter from Howe and Austin, Walter Electric Burglar Alarm Co to Edison and Murray, August 11th, 1874

  1874-08-11