Pocket Watch Patents

The following gallery contains patents that were issued or assigned to Philadelphia Watch Case Co. or individuals known to be associated with the company at the time. Not all designs were fully implemented into production.

Watch Pendant Mfg

Patent Number:	866194
Description:	Watch Pendant Mfg
Inventor:	Derfler George A
Assignee:	Philadelphia Watch Case Co
Patent Date:	Sep 17, 1907
Registration Type:	Patent

Watch Bow Mfg

Patent Number:	946082
Description:	Watch Bow Mfg
Inventor:	Levy Bernard Ullberg John
Assignee:	Philadelphia Watch Case Co
Patent Date:	Jan 11, 1910
Registration Type:	Patent

Watch Movement

Patent Number:	946385
Description:	Watch Movement
Inventor:	Mehl Walter B
Assignee:	Philadelphia Watch Case Co
Patent Date:	Jan 11, 1910
Registration Type:	Patent

Watch Stem Wind & Set

Patent Number:	946906
Description:	Watch Stem Wind & Set
Inventor:	Ebelhare William B Mehl Walter B
Assignee:	Philadelphia Watch Case Co
Patent Date:	Jan 18, 1910
Registration Type:	Patent

Watch Movement Click

Patent Number:	951106
Description:	Watch Movement Click
Inventor:	Ebelhare William Henry
Assignee:	Philadelphia Watch Case Co
Patent Date:	Mar 8, 1910
Registration Type:	Patent

Cannon Pinion Shaft

Patent Number:	951139
Description:	Cannon Pinion Shaft
Inventor:	Mehl Walter B
Assignee:	Philadelphia Watch Case Co
Patent Date:	Mar 8, 1910
Registration Type:	Patent