Pocket Watch Database

Patent Archive
#2395328

Patent Information

Watch Observation Box For Timing

Robert Daniel Heffelfinger

February 19, 1946

Patent #2395328
Manufacturer:Hamilton
Patent Number:2395328
Description:Watch Observation Box For Timing
Inventor(s): Robert Daniel Heffelfinger
Assignee:Hamilton Watch Co
Patent Date:Feb 19, 1946
Registration Type:Patent
External Research:https://www.google.c…
Patent Document:  PDF