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US Patent: 723,188
Method of signaling
Patentee:
Nikola Tesla (exact or similar names) - New York, NY

USPTO Classifications:
361/182, 455/504

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jul. 16, 1900
Granted: Mar. 17, 1903

Patent Pictures:
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