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US Patent: 269,133
Air-pump
Exhausting globes of electric lamps
Patentee:
William Stanley, Jr. - Englewood, NJ

USPTO Classifications:
417/150

Tool Categories:
electrical devices : electric arc lamps

Assignees:
Swan Incandescent Electric Light Co. - Boston, MA

Manufacturer:
Not known to have been produced

Witnesses:
James S. Greves
R. F. Gaylord

Patent Dates:
Applied: Apr. 27, 1882
Granted: Dec. 12, 1882

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Stanley G. I. Electric Manufacturing Co.

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