Portfolio comparison
Automatic Electric Co vs George Westinghouse, Jr.
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Automatic Electric Co
Patents indexed
1
Year range
1925
Most recent
1925
telecommunicationsmechanical
Top Patents1 enriched
US 1537326· 1925
How Early Telephone Systems Managed Busy Lines Automatically
Activity by Decade
1920s1
Top Patents1 enriched
US 88929· 1869
George Westinghouse's Original Steam-Powered Train Brake
Activity by Decade
1860s1
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