Pocket Watch Database

Patent Archive
#677638

Patent Information

Watch Balance Staff

Duane H. Church

July 2, 1901

Patent #677638
Manufacturer:Waltham
Patent Number:677638
Description:Watch Balance Staff
Inventor(s): Duane H. Church
Patent Date:Jul 2, 1901
Registration Type:Patent
External Research:https://www.google.c…
Patent Document:  PDF