US Patent: 23,820 - Manufacture of Watch Cases


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US Patent: 23,820

Manufacture of Watch Cases

Patentee:

James Boss (exact or similar names) - Philadelphia, PA

USPTO Classifications:

29/896.33, 72/80

Tool Categories:

specialty machines : watchmaking machinery

metalworking machines : metal spinning machines

Assignees:

None

Manufacturer:

Jas Boss - Philadelphia, PA

Keystone Watch Case Co. - Philadelphia, PA

Witnesses:

John B. Kenny

Alfred D. Brick

Patent Dates:
Granted:	May 03, 1859

Patent Pictures:

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Description:

James Boss patented the "gold filled" watch case , sandwiching a base metal (brass, steel) with gold or silver. The Keystone-Watch-Case Co. purchased the patent and trademark rights for the JBoss case from the previous owners and used it with their own trademark. Information found at nawcc.org.