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US Patent: 543,309
Machine for cutting key-seats
Patentees:
David Lake (exact or similar names) - Philadelphia, PA
Leon Lake (exact or similar names) - Philadelphia, PA

USPTO Classifications:
409/177

Tool Categories:
metalworking machines : key seating machines
metalworking machines : broaching machines

Assignees:
Hattie I. Lake - Philadelphia, PA
Leon Lake - Philadelphia, PA

Manufacturer:
Lake Bros. - Philadelphia, PA

Witnesses:
Sara Estabrook
India Lake

Patent Dates:
Applied: Oct. 01, 1894
Granted: Jul. 23, 1895

Patent Pictures:
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Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Lake Bros.

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